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WBBSE Class 10 Telecom – Optical Fiber Splicer 100 Questions & Answers (Bengali) â€ĸ WBCHSE Vocational Telecom Sem 2 Suggestion & Question Answer | Optical Fiber Technician â€ĸ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋ⧟āĻžāύ: āĻ•ā§āϞāĻžāϏ ⧧⧍ āϏ⧇āĻŽāĻŋāĻ¸ā§āϟāĻžāϰ ⧍-āĻāϰ āϜāĻ¨ā§āϝ ā§§ā§Ļā§ĻāϟāĻŋ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ SAQ (Telecom) â€ĸ WBCHSE āĻ•ā§āϞāĻžāϏ ā§§ā§§ āĻĢ⧁āĻĄ āĻĒā§āϰāϏ⧇āϏāĻŋāĻ‚ (āϏ⧇āĻŽā§‡āĻ¸ā§āϟāĻžāϰ ⧍) â€ĸ Telecom Exam Guide For Class 11 sem 2 â€ĸ WBBSE Class 10 Telecom – Optical Fiber Splicer 100 Questions & Answers (Bengali) â€ĸ WBCHSE Vocational Telecom Sem 2 Suggestion & Question Answer | Optical Fiber Technician â€ĸ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋ⧟āĻžāύ: āĻ•ā§āϞāĻžāϏ ⧧⧍ āϏ⧇āĻŽāĻŋāĻ¸ā§āϟāĻžāϰ ⧍-āĻāϰ āϜāĻ¨ā§āϝ ā§§ā§Ļā§ĻāϟāĻŋ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ SAQ (Telecom) â€ĸ WBCHSE āĻ•ā§āϞāĻžāϏ ā§§ā§§ āĻĢ⧁āĻĄ āĻĒā§āϰāϏ⧇āϏāĻŋāĻ‚ (āϏ⧇āĻŽā§‡āĻ¸ā§āϟāĻžāϰ ⧍) â€ĸ Telecom Exam Guide For Class 11 sem 2 â€ĸ
Multiple-choice question graphic showing an optical fiber fusion splicer with the question “This device is used for splicing ______ fibers” and options coaxial, optical, electrical, and wireless.

Optical fiber Splicer QA

Optical fiber Splicer Class-10 Questions and Answers

Optical Fiber Splicer QA for Class 10 students, covering fiber optic communication, splicing tools, OFC cable laying, OTDR testing, health & safety and networking MCQs in Bengali and English.

āύāĻŋāĻšā§‡ āĻĻ⧇āĻ“ā§ŸāĻž āĻĒā§āϰāĻļā§āύ-āϏ⧇āϟāϗ⧁āϞ⧋āϰ āĻŦāĻŋāĻ¸ā§āϤāĻžāϰāĻŋāϤ āĻĒ⧇āϤ⧇, āϏ⧇āϟāϗ⧁āϞ⧋āϰ āωāĻĒāϰ āĻ•ā§āϞāĻŋāĻ• āĻŦāĻž āϟāĻžāϚ āĻ•āϰ⧁āύāĨ¤

Access the desired question set by clicking or tapping on it below.

Unit 1: Fiber Optic Communication and Route Inspection – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻŽā§‚āϞ āωāĻĒāĻžāĻĻāĻžāύ āϕ⧋āύāϟāĻŋ?
(What is the main material of an optical fiber?)
  • a) āĻĒā§āϞāĻžāĻ¸ā§āϟāĻŋāĻ• (Plastic)
  • b) āĻ•āĻžāρāϚ/āĻ—ā§āϞāĻžāϏ (Glass)
  • c) āϤāĻžāĻŽāĻž (Copper)
  • d) āĻ…ā§āϝāĻžāϞ⧁āĻŽāĻŋāύāĻŋāϝāĻŧāĻžāĻŽ (Aluminium)
Answer (click to explore)

Correct: b) āĻ•āĻžāρāϚ/āĻ—ā§āϞāĻžāϏ (Glass)

2. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϝ⧋āĻ—āĻžāϝ⧋āϗ⧇ āϤāĻĨā§āϝ āϕ⧋āύ āϰ⧂āĻĒ⧇ āĻĒā§āϰ⧇āϰāĻŖ āĻ•āϰāĻž āĻšāϝāĻŧ?
(In fiber optic communication, information is transmitted in the form of what?)
  • a) āĻļāĻŦā§āĻĻ āϤāϰāĻ™ā§āĻ— (Sound waves)
  • b) āφāϞ⧋āĻ• āϤāϰāĻ™ā§āĻ— (Light waves)
  • c) āϤāĻžāĻĒ āĻļāĻ•ā§āϤāĻŋ (Heat energy)
  • d) āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ• āĻ•āĻŽā§āĻĒāύ (Mechanical vibration)
Answer (click to explore)

Correct: b) āφāϞ⧋āĻ• āϤāϰāĻ™ā§āĻ— (Light waves)

3. āϕ⧋āύ āĻ…āĻ‚āĻļ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āφāϞ⧋āϰ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āϚāϞāĻžāϚāϞ āĻ•āϰ⧇?
(Through which part does light travel inside an optical fiber?)
  • a) āϕ⧋āϰ (Core)
  • b) āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚ (Cladding)
  • c) āφāωāϟāĻžāϰ āĻœā§āϝāĻžāϕ⧇āϟ (Outer jacket)
  • d) āĻ¸ā§āĻŸā§āϰ⧇āύ āϰāĻŋāϞāĻŋāĻĢ (Strain relief)
Answer (click to explore)

Correct: a) āϕ⧋āϰ (Core)

4. āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚-āĻāϰ āĻĒā§āϰāϧāĻžāύ āĻ•āĻžāϜ āϕ⧀?
(What is the main function of cladding?)
  • a) āϕ⧋āϰāϕ⧇ āϰāĻ‚ āĻ•āϰāĻž (To colour the core)
  • b) āφāϞ⧋ āĻŦāĻžāχāϰ⧇ āĻŦ⧇āϰāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž āϰ⧋āϧ āĻ•āϰāĻž (To prevent light from escaping)
  • c) āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āĻ āĻžāĻ¨ā§āĻĄāĻž āϰāĻžāĻ–āĻž (To keep fiber cool)
  • d) āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āĻŽāĻžāϟāĻŋāϤ⧇ āĻŦāĻžāρāϧāĻž (To tie fiber to ground)
Answer (click to explore)

Correct: b) āφāϞ⧋ āĻŦāĻžāχāϰ⧇ āĻŦ⧇āϰāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž āϰ⧋āϧ āĻ•āϰāĻž (To prevent light from escaping)

5. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧋āύ āύ⧀āϤāĻŋāϰ āωāĻĒāϰ āĻ•āĻžāϜ āĻ•āϰ⧇?
(On which principle does an optical fiber work?)
  • a) āĻĒā§āϰāϤāĻŋāĻĢāϞāύ (Reflection)
  • b) āĻ…āĻĒāĻŦāĻ°ā§āϤāύ (Refraction)
  • c) āĻĒā§‚āĻ°ā§āĻŖ āĻ…āĻ­ā§āϝāĻ¨ā§āϤāϰ⧀āĻŖ āĻĒā§āϰāϤāĻŋāĻĢāϞāύ (Total internal reflection)
  • d) āĻŦāĻŋāĻšā§āϛ⧁āϰāĻŖ (Scattering)
Answer (click to explore)

Correct: c) āĻĒā§‚āĻ°ā§āĻŖ āĻ…āĻ­ā§āϝāĻ¨ā§āϤāϰ⧀āĻŖ āĻĒā§āϰāϤāĻŋāĻĢāϞāύ (Total internal reflection)

6. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āφāϞ⧋āĻ• āϏāĻ‚āĻ—ā§āϰāĻš āĻ•ā§āώāĻŽāϤāĻž āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰāϤ⧇ āϕ⧋āύ āĻĒāϰāĻŋāĻŽāĻžāĻĒāĻ• āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which parameter indicates the light-gathering ability of an optical fiber?)
  • a) āĻŦā§āϝāĻžāĻ¨ā§āĻĄāωāχāĻĨ (Bandwidth)
  • b) āύāĻŋāωāĻŽā§‡āϰāĻŋāĻ•ā§āϝāĻžāϞ āĻ…ā§āϝāĻžāĻĒāĻžāϰāϚāĻžāϰ (Numerical aperture)
  • c) āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ (Length)
  • d) āĻŦā§āϝāĻžāϏ (Diameter)
Answer (click to explore)

Correct: b) āύāĻŋāωāĻŽā§‡āϰāĻŋāĻ•ā§āϝāĻžāϞ āĻ…ā§āϝāĻžāĻĒāĻžāϰāϚāĻžāϰ (Numerical aperture)

7. āĻ¸ā§āύ⧇āϞ⧇āϰ āϏ⧂āĻ¤ā§āϰ (Snell’s law) āϕ⧋āύ āĻĻ⧁āχ āϕ⧋āϪ⧇āϰ āϏāĻŽā§āĻĒāĻ°ā§āĻ• āĻŦā§‹āĻāĻžāϝāĻŧ?
(Snell’s law relates which two angles?)
  • a) āφāĻĒāϤāύ āĻ“ āĻĒā§āϰāϤāĻŋāĻĢāϞāύ āϕ⧋āĻŖ (Angle of incidence and reflection)
  • b) āφāĻĒāϤāύ āĻ“ āĻ…āĻĒāĻŦāĻ°ā§āϤāύ āϕ⧋āĻŖ (Angle of incidence and refraction)
  • c) āĻ…āĻĒāĻŦāĻ°ā§āϤāύ āĻ“ āĻŦāĻŋāĻšā§āϛ⧁āϰāĻŖ āϕ⧋āĻŖ (Angle of refraction and scattering)
  • d) āĻĒā§āϰāϤāĻŋāĻĢāϞāύ āĻ“ āĻŦāĻŋāĻšā§āϛ⧁āϰāĻŖ āϕ⧋āĻŖ (Angle of reflection and scattering)
Answer (click to explore)

Correct: b) āφāĻĒāϤāύ āĻ“ āĻ…āĻĒāĻŦāĻ°ā§āϤāύ āϕ⧋āĻŖ (Angle of incidence and refraction)

8. āĻŽā§‹āĻĄā§‡āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻ­āĻŋāĻ¤ā§āϤāĻŋāϤ⧇ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āĻ•āĻŋāĻ­āĻžāĻŦ⧇ āĻļā§āϰ⧇āĻŖāĻŋāĻŦāĻĻā§āϧ āĻ•āϰāĻž āĻšāϝāĻŧ?
(How are fibers classified based on the number of modes?)
  • a) āϏāĻŋāĻ™ā§āϗ⧇āϞ-āĻŽā§‹āĻĄ āĻ“ āĻŽāĻžāĻ˛ā§āϟāĻŋ-āĻŽā§‹āĻĄ (Single-mode and multi-mode)
  • b) āĻĒāĻžāϤāϞāĻž āĻ“ āĻŽā§‹āϟāĻž (Thin and thick)
  • c) āϛ⧋āϟ āĻ“ āĻŦāĻĄāĻŧ (Short and long)
  • d) āϏāĻ¸ā§āϤāĻž āĻ“ āĻĻāĻžāĻŽā§€ (Cheap and expensive)
Answer (click to explore)

Correct: a) āϏāĻŋāĻ™ā§āϗ⧇āϞ-āĻŽā§‹āĻĄ āĻ“ āĻŽāĻžāĻ˛ā§āϟāĻŋ-āĻŽā§‹āĻĄ (Single-mode and multi-mode)

9. āĻĢāĻžāχāĻŦāĻžāϰ⧇ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ⧇āϰ āĻļāĻ•ā§āϤāĻŋ āϧ⧀āϰ⧇ āϧ⧀āϰ⧇ āĻ•āĻŽā§‡ āϝāĻžāĻ“āϝāĻŧāĻžāϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(What is the gradual decrease in signal power in a fiber called?)
  • a) āϗ⧇āχāύ (Gain)
  • b) āĻ…ā§āϝāĻžāĻŸā§‡āύ⧁āϝāĻŧ⧇āĻļāύ/āĻ•ā§āώāϝāĻŧ (Attenuation)
  • c) āĻĒā§āϰāϤāĻŋāĻĢāϞāύ (Reflection)
  • d) āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ (Dispersion)
Answer (click to explore)

Correct: b) āĻ…ā§āϝāĻžāĻŸā§‡āύ⧁āϝāĻŧ⧇āĻļāύ/āĻ•ā§āώāϝāĻŧ (Attenuation)

10. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϝ⧋āĻ—āĻžāϝ⧋āĻ— āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻžāϰ āĻŽā§ŒāϞāĻŋāĻ• āωāĻĒāĻžāĻĻāĻžāύ āϕ⧋āύāϟāĻŋ āύāϝāĻŧ?
(Which of the following is NOT a basic element of a fiber optic communication system?)
  • a) āĻŸā§āϰāĻžāĻ¨ā§āϏāĻŽāĻŋāϟāĻžāϰ (Transmitter)
  • b) āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āĻšā§āϝāĻžāύ⧇āϞ (Optical fiber channel)
  • c) āϰāĻŋāϏāĻŋāĻ­āĻžāϰ (Receiver)
  • d) āϏ⧋āϞāĻžāϰ āĻĒā§āϝāĻžāύ⧇āϞ (Solar panel)
Answer (click to explore)

Correct: d) āϏ⧋āϞāĻžāϰ āĻĒā§āϝāĻžāύ⧇āϞ (Solar panel)

11. OFC āϰ⧁āϟ āĻĒā§āĻ˛ā§āϝāĻžāύ āĻŽā§‚āϞāϤ āϕ⧀ āĻĻ⧇āĻ–āĻžāϝāĻŧ?
(What does an OFC route plan mainly show?)
  • a) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ (Only cable colour)
  • b) āϕ⧇āĻŦāϞ⧇āϰ āϏāĻŽā§āĻ­āĻžāĻŦā§āϝ āĻĒāĻĨ āĻ“ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ āĻĒāϝāĻŧ⧇āĻ¨ā§āϟ (Probable cable path and key points)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻŦā§āϝāĻžāĻ¨ā§āĻĄāωāχāĻĨ (Fiber bandwidth)
  • d) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϕ⧋āϰ āĻĄāĻžāϝāĻŧāĻžāĻŽāĻŋāϟāĻžāϰ (Fiber core diameter)
Answer (click to explore)

Correct: b) āϕ⧇āĻŦāϞ⧇āϰ āϏāĻŽā§āĻ­āĻžāĻŦā§āϝ āĻĒāĻĨ āĻ“ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ āĻĒāϝāĻŧ⧇āĻ¨ā§āϟ (Probable cable path and key points)

12. āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āĻ•āϰāĻžāϰ āĻŽā§‚āϞ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the main purpose of route inspection?)
  • a) āϕ⧇āĻŦāϞ āĻ•āĻŋāύ⧇ āφāύāĻž (To purchase cable)
  • b) āϏāĻŽā§āĻ­āĻžāĻŦā§āϝ āĻŦāĻžāϧāĻž āĻ“ āĻā§āρāĻ•āĻŋ āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰāĻž (To identify obstacles and risks)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻŦā§āϝāĻžāϏ āĻŽāĻžāĻĒāĻž (To measure fiber diameter)
  • d) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ āϞ⧇āĻ–āĻž (Only to write a report)
Answer (click to explore)

Correct: b) āϏāĻŽā§āĻ­āĻžāĻŦā§āϝ āĻŦāĻžāϧāĻž āĻ“ āĻā§āρāĻ•āĻŋ āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰāĻž (To identify obstacles and risks)

13. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ āĻĒāϰ⧀āĻ•ā§āώāĻž āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which of the following is checked during route inspection?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ (Colour of cable)
  • b) āĻŽāĻžāϟāĻŋāϰ āĻ…āĻŦāĻ¸ā§āĻĨāĻž āĻ“ āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āĻĒāĻžāχāĻĒāϞāĻžāχāύ (Soil condition and existing pipelines)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧋āϰ āύāĻŽā§āĻŦāϰ (Fiber core number)
  • d) āϕ⧋āϰ⧇āϰ āϰāĻŋāĻĢā§āϰ⧇āĻ•ā§āϟāĻŋāĻ­ āχāύāĻĄā§‡āĻ•ā§āϏ āĻŸā§‡āĻŦāĻŋāϞ (Table of core refractive index)
Answer (click to explore)

Correct: b) āĻŽāĻžāϟāĻŋāϰ āĻ…āĻŦāĻ¸ā§āĻĨāĻž āĻ“ āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āĻĒāĻžāχāĻĒāϞāĻžāχāύ (Soil condition and existing pipelines)

14. āϜāϞāĻžāĻŦāĻĻā§āϧ (water-logged) āĻāϞāĻžāĻ•āĻžāϝāĻŧ āϏāĻžāϧāĻžāϰāĻŖāϤ OFC āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should generally be done for OFC installation in water-logged areas?)
  • a) āϏāϰāĻžāϏāϰāĻŋ āĻ–ā§‹āϞāĻž āĻŽāĻžāϟāĻŋāϤ⧇ āϕ⧇āĻŦāϞ āĻĒ⧁āρāϤ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Directly bury cable in open soil)
  • b) āωāĻĒāϝ⧁āĻ•ā§āϤ āĻĄāĻžāĻ•ā§āϤ/āĻĒāĻžāχāĻĒ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use proper ducts/pipes)
  • c) āϕ⧋āύ⧋ āĻĒāϰāĻŋāĻ•āĻ˛ā§āĻĒāύāĻž āĻ›āĻžāĻĄāĻŧāĻžāχ āϕ⧇āĻŦāϞ āϟāĻžāύāĻž (Lay without any planning)
  • d) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āϕ⧋āϰ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻ•āϰāĻž (Only change the core)
Answer (click to explore)

Correct: b) āωāĻĒāϝ⧁āĻ•ā§āϤ āĻĄāĻžāĻ•ā§āϤ/āĻĒāĻžāχāĻĒ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use proper ducts/pipes)

15. āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻ•ā§āώāϝāĻŧ⧇āϰ āĻāĻ•āĻ• āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāĻž āĻšāϝāĻŧ?
(In which unit is fiber loss usually expressed?)
  • a) āĻ“āϝāĻŧāĻžāϟ (Watt)
  • b) āĻ­ā§‹āĻ˛ā§āϟ (Volt)
  • c) āĻĄā§‡āϏāĻŋāĻŦ⧇āϞ āĻĒā§āϰāϤāĻŋ āĻ•āĻŋāϞ⧋āĻŽāĻŋāϟāĻžāϰ (dB/km)
  • d) āĻšāĻžāĻ°ā§āϟāϜ (Hertz)
Answer (click to explore)

Correct: c) āĻĄā§‡āϏāĻŋāĻŦ⧇āϞ āĻĒā§āϰāϤāĻŋ āĻ•āĻŋāϞ⧋āĻŽāĻŋāϟāĻžāϰ (dB/km)

16. āĻĢāĻžāχāĻŦāĻžāϰ āϝāϤ āĻŦ⧇āĻļāĻŋ āϞāĻŽā§āĻŦāĻž āĻšāĻŦ⧇, āϏāĻžāϧāĻžāϰāĻŖāϤ āĻ•ā§āώāϝāĻŧ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻšāϝāĻŧ?
(As fiber length increases, how does attenuation generally change?)
  • a) āĻ•ā§āώāϝāĻŧ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧ (Loss decreases)
  • b) āĻ•ā§āώāϝāĻŧ āĻ…āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻĨāĻžāϕ⧇ (Loss remains same)
  • c) āĻ•ā§āώāϝāĻŧ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒāĻžāϝāĻŧ (Loss increases)
  • d) āĻ•ā§āώāϝāĻŧ āĻļā§‚āĻ¨ā§āϝ āĻšāϝāĻŧ (Loss becomes zero)
Answer (click to explore)

Correct: c) āĻ•ā§āώāϝāĻŧ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒāĻžāϝāĻŧ (Loss increases)

17. āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āĻļ⧇āώ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āύāĻĨāĻŋ āĻĒā§āϰāĻ¸ā§āϤ⧁āϤ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which document is usually prepared after route inspection?)
  • a) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ (Power meter report)
  • b) OTDR āĻŸā§āϰ⧇āϏ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ (OTDR trace report)
  • c) āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ (Route inspection report)
  • d) āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϞāϏ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ (Splice loss report)
Answer (click to explore)

Correct: c) āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ (Route inspection report)

18. āĻāĻ•āϟāĻŋ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧇āĻŦāϞ⧇ āϕ⧋āϰ⧇āϰ āϰāĻŋāĻĢā§āϰ⧇āĻ•ā§āϟāĻŋāĻ­ āχāύāĻĄā§‡āĻ•ā§āϏ āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚-āĻāϰ āϤ⧁āϞāύāĻžāϝāĻŧ āϕ⧇āĻŽāύ āĻšāϝāĻŧ?
(In an optical fiber cable, how is the core’s refractive index relative to the cladding?)
  • a) āϏāĻŽāĻžāύ (Equal)
  • b) āĻ•āĻŽ (Less)
  • c) āĻŦ⧇āĻļāĻŋ (Greater)
  • d) āĻ•āĻ–āύ⧋ āĻŦ⧇āĻļāĻŋ, āĻ•āĻ–āύ⧋ āĻ•āĻŽ (Sometimes greater, sometimes less)
Answer (click to explore)

Correct: c) āĻŦ⧇āĻļāĻŋ (Greater)

19. OFC āϰ⧁āϟ āĻĄāĻžāϝāĻŧāĻžāĻ—ā§āϰāĻžāĻŽā§‡ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻĻ⧇āĻ–āĻžāύ⧋ āĻšāϝāĻŧ āύāĻž?
(Which of the following is usually NOT shown in an OFC route diagram?)
  • a) āϜāϝāĻŧ⧇āĻ¨ā§āϟ āϞ⧋āϕ⧇āĻļāύ (Joint locations)
  • b) āĻŽā§āϝāĻžāύāĻšā§‹āϞ/āĻšā§‡āĻŽā§āĻŦāĻžāϰ (Manholes/chambers)
  • c) āϕ⧋āϰ⧇āϰ āϰāĻŋāĻĢā§āϰ⧇āĻ•ā§āϟāĻŋāĻ­ āχāύāĻĄā§‡āĻ•ā§āϏ (Core refractive index)
  • d) āϰāĻžāĻ¸ā§āϤāĻž āĻ“ āĻŦāĻžāϧāĻž (Roads and obstacles)
Answer (click to explore)

Correct: c) āϕ⧋āϰ⧇āϰ āϰāĻŋāĻĢā§āϰ⧇āĻ•ā§āϟāĻŋāĻ­ āχāύāĻĄā§‡āĻ•ā§āϏ (Core refractive index)

20. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϝ⧋āĻ—āĻžāϝ⧋āĻ— āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ āϤāĻžāĻŽāĻžāϰ āϕ⧇āĻŦāϞ⧇āϰ āϤ⧁āϞāύāĻžāϝāĻŧ āĻāĻ•āϟāĻŋ āĻŦāĻĄāĻŧ āϏ⧁āĻŦāĻŋāϧāĻž āϕ⧀?
(What is a major advantage of fiber optic cables compared to copper cables?)
  • a) āĻŦ⧇āĻļāĻŋ āχāϞ⧇āĻ•ā§āĻŸā§āϰāĻŋāĻ•āĻžāϞ āĻ¨ā§Ÿā§‡āϜ (More electrical noise)
  • b) āĻ•āĻŽ āĻŦā§āϝāĻžāĻ¨ā§āĻĄāωāχāĻĨ (Lower bandwidth)
  • c) āĻŦ⧇āĻļāĻŋ āĻĄā§‡āϟāĻž āĻ—āϤāĻŋ āĻ“ āĻ•āĻŽ āĻ•ā§āώāϝāĻŧ (Higher data rate and lower loss)
  • d) āĻ­āĻžāϰ⧀ āĻ“ āĻŽā§‹āϟāĻž āϕ⧇āĻŦāϞ (Heavier and thicker cable)
Answer (click to explore)

Correct: c) āĻŦ⧇āĻļāĻŋ āĻĄā§‡āϟāĻž āĻ—āϤāĻŋ āĻ“ āĻ•āĻŽ āĻ•ā§āώāϝāĻŧ (Higher data rate and lower loss)

Unit 2: Splicing Tools and Process – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āĻĻ⧁āϟāĻŋ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āĻ¸ā§āĻĨāĻžāϝāĻŧā§€āĻ­āĻžāĻŦ⧇ āĻœā§‹āĻĄāĻŧāĻž āĻĻ⧇āĻ“āϝāĻŧāĻžāϰ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϕ⧇ āϕ⧀ āĻŦāϞ⧇?
(What is the process of permanently joining two optical fibers called?)
  • a) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰāĻžāχāĻœā§‡āĻļāύ (Connectorization)
  • b) āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ (Fusion splicing)
  • c) āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āϜāϝāĻŧ⧇āĻ¨ā§āϟ (Mechanical joint)
  • d) āĻ•ā§āϰāĻŋāĻŽā§āĻĒāĻŋāĻ‚ (Crimping)
Answer (click to explore)

Correct: b) āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ (Fusion splicing)

2. āϕ⧋āύ āϧāϰāύ⧇āϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ…āĻ¸ā§āĻĨāĻžāϝāĻŧā§€ āĻāĻŦāĻ‚ āĻĒ⧁āύāϰāĻžāϝāĻŧ āĻŦāĻŋāĻšā§āĻ›āĻŋāĻ¨ā§āύ āĻ•āϰāĻž āϝāĻžāϝāĻŧ?
(Which type of splice is temporary and can be disconnected?)
  • a) āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Fusion splice)
  • b) āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Mechanical splice)
  • c) āĻ“āϝāĻŧ⧇āĻ˛ā§āĻĄā§‡āĻĄ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Welded splice)
  • d) āϏ⧋āĻ˛ā§āĻĄāĻžāϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Solder splice)
Answer (click to explore)

Correct: b) āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Mechanical splice)

3. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ āĻ•āĻžāϟāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧋āύ āϟ⧁āϞ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which tool is used to cut the fiber ends in fusion splicing?)
  • a) āĻ¸ā§āĻ•ā§āϰ⧁ āĻĄā§āϰāĻžāχāĻ­āĻžāϰ (Screwdriver)
  • b) āĻĒā§āϰāĻŋāϏāĻŋāĻļāύ āĻ•ā§āϞāĻŋāĻ­āĻžāϰ (Precision cleaver)
  • c) āĻĒā§āϞāĻžāϝāĻŧāĻžāĻ°ā§āϏ (Pliers)
  • d) āĻšāĻžāϤ⧁āĻĄāĻŧāĻŋ (Hammer)
Answer (click to explore)

Correct: b) āĻĒā§āϰāĻŋāϏāĻŋāĻļāύ āĻ•ā§āϞāĻŋāĻ­āĻžāϰ (Precision cleaver)

4. āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϕ⧋āϟāĻŋāĻ‚/āĻŦāĻžāĻĢāĻžāϰ āϤ⧁āϞ⧇ āĻĢ⧇āϞāϤ⧇ āϝ⧇ āϟ⧁āϞ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ āϤāĻžāϕ⧇ āϕ⧀ āĻŦāϞ⧇?
(What is the tool used to remove the fiber coating/buffer called?)
  • a) āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ āĻŦāĻž āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ (Stripper/Fiber stripper)
  • b) āϟāĻŋāωāĻŦ āĻ•āĻžāϟāĻžāϰ (Tube cutter)
  • c) āĻŽāĻŋāϟāĻžāϰ āϰāĻĄ (Measuring rod)
  • d) āϏ⧋āĻ˛ā§āĻĄāĻžāϰāĻŋāĻ‚ āφāϝāĻŧāϰāύ (Soldering iron)
Answer (click to explore)

Correct: a) āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ āĻŦāĻž āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ (Stripper/Fiber stripper)

5. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•āϰāĻžāϰ āφāϗ⧇ āĻĢāĻžāχāĻŦāĻžāϰ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(What is commonly used to clean the fiber before splicing?)
  • a) āϏāĻžāĻĻāĻž āĻĒāĻžāύāĻŋ (Plain water)
  • b) āφāχāϏ⧋āĻĒā§āϰ⧋āĻĒāĻžāχāϞ āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ āĻ“ āϟāĻŋāĻ¸ā§āϝ⧁ (Isopropyl alcohol and tissue)
  • c) āĻĒ⧇āĻŸā§āϰ⧋āϞ (Petrol)
  • d) āϤ⧇āϞ (Oil)
Answer (click to explore)

Correct: b) āφāχāϏ⧋āĻĒā§āϰ⧋āĻĒāĻžāχāϞ āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ āĻ“ āϟāĻŋāĻ¸ā§āϝ⧁ (Isopropyl alcohol and tissue)

6. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āĻŽā§‡āĻļāĻŋāύ⧇āϰ āĻĒā§āϰāĻĨāĻŽ āϧāĻžāĻĒ āϕ⧀?
(What is the first step performed by a fusion splicing machine?)
  • a) āĻĢāĻžāχāĻŦāĻžāϰ āĻĒ⧁āĻĄāĻŧāĻŋāϝāĻŧ⧇ āĻĢ⧇āϞāĻž (Burn the fiber)
  • b) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϕ⧋āϰ āĻāϞāĻžāχāύāĻŽā§‡āĻ¨ā§āϟ āĻ•āϰāĻž (Align the fiber cores)
  • c) āĻœā§āϝāĻžāϕ⧇āϟ āĻ•āĻžāϟāĻž (Cut the jacket)
  • d) āϕ⧇āĻŦāϞ āϟāĻžāύāĻž (Pull the cable)
Answer (click to explore)

Correct: b) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϕ⧋āϰ āĻāϞāĻžāχāύāĻŽā§‡āĻ¨ā§āϟ āĻ•āϰāĻž (Align the fiber cores)

7. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻĒāϝāĻŧ⧇āĻ¨ā§āϟāϕ⧇ āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ•āĻ­āĻžāĻŦ⧇ āϏ⧁āϰāĻ•ā§āώāĻŋāϤ āĻ•āϰāϤ⧇ āϕ⧀ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(What is used to mechanically protect the splice point?)
  • a) āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāĻ­ (Protection sleeve)
  • b) āĻŸā§‡āĻĒ (Tape)
  • c) āĻ•ā§āĻ˛ā§āϝāĻžāĻŽā§āĻĒ (Clamp)
  • d) āĻĒā§āϞāĻžāĻ¸ā§āϟāĻŋāĻ• āϟāĻžāχ (Plastic tie)
Answer (click to explore)

Correct: a) āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāĻ­ (Protection sleeve)

8. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϟ⧁āϞ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āϕ⧋āύāϟāĻŋ āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ āĻĨ⧇āϕ⧇ āϕ⧇āĻŦāϞ āĻ•āĻžāϟāĻžāϰ āϜāĻ¨ā§āϝ āĻŦ⧇āĻļāĻŋ āĻĒā§āϰāϝ⧋āĻœā§āϝ?
(Which splicing-related tool is more suitable for cutting cable from the drum?)
  • a) āϰāĻžāωāĻ¨ā§āĻĄ āϟāĻŋāωāĻŦ āĻ•āĻžāϟāĻžāϰ (Round tube cutter)
  • b) āĻĢāĻžāχāϞ (File)
  • c) āĻ¸ā§āϕ⧇āϞ (Scale)
  • d) āĻ¸ā§āϝāĻžāĻ¨ā§āĻĄ āĻĒ⧇āĻĒāĻžāϰ (Sand paper)
Answer (click to explore)

Correct: a) āϰāĻžāωāĻ¨ā§āĻĄ āϟāĻŋāωāĻŦ āĻ•āĻžāϟāĻžāϰ (Round tube cutter)

9. āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āϤ⧁āϞāύāĻžāϝāĻŧ —
(Compared to fusion splice, mechanical splice generally has —)
  • a) āĻ•āĻŽ āϞāϏ (Lower loss)
  • b) āĻŦ⧇āĻļāĻŋ āϞāϏ (Higher loss)
  • c) āĻļā§‚āĻ¨ā§āϝ āϞāϏ (Zero loss)
  • d) āĻāĻ•āχ āϞāϏ (Same loss)
Answer (click to explore)

Correct: b) āĻŦ⧇āĻļāĻŋ āϞāϏ (Higher loss)

10. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āĻ•āϰāĻžāϰ āĻŽā§‚āϞ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the main purpose of splicing?)
  • a) āϕ⧇āĻŦāϞāϕ⧇ āϰāĻ™āĻŋāύ āĻ•āϰāĻž (To colour the cable)
  • b) āĻĻ⧁āϟāĻŋ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āϝ⧁āĻ•ā§āϤ āĻ•āϰ⧇ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ⧇āϰ āϧāĻžāϰāĻžāĻŦāĻžāĻšāĻŋāĻ•āϤāĻž āϰāĻžāĻ–āĻž (To join two fibers and maintain signal continuity)
  • c) āϕ⧇āĻŦāϞ āϛ⧋āϟ āĻ•āϰāĻž (To shorten the cable)
  • d) āϕ⧇āĻŦāϞ āĻ­āĻžāϰ⧀ āĻ•āϰāĻž (To make cable heavier)
Answer (click to explore)

Correct: b) āĻĻ⧁āϟāĻŋ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āϝ⧁āĻ•ā§āϤ āĻ•āϰ⧇ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ⧇āϰ āϧāĻžāϰāĻžāĻŦāĻžāĻšāĻŋāĻ•āϤāĻž āϰāĻžāĻ–āĻž (To join two fibers and maintain signal continuity)

11. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻŦ⧇āϏāĻŋāĻ• āĻšā§āϝāĻžāĻ¨ā§āĻĄ āϟ⧁āϞ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āĻĒāĻĄāĻŧ⧇?
(Which of the following is a basic hand tool?)
  • a) āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻŽā§‡āĻļāĻŋāύ (Fusion splicing machine)
  • b) āĻ¸ā§āĻ•ā§āϰ⧁ āĻĄā§āϰāĻžāχāĻ­āĻžāϰ (Screwdriver)
  • c) OTDR
  • d) āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻĢāĻ˛ā§āϟ āϞ⧋āϕ⧇āϟāϰ (Visual fault locator)
Answer (click to explore)

Correct: b) āĻ¸ā§āĻ•ā§āϰ⧁ āĻĄā§āϰāĻžāχāĻ­āĻžāϰ (Screwdriver)

12. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻŦā§āϝāĻŦāĻšā§ƒāϤ “āϟāĻžāĻ°ā§āĻŽāĻŋāύ⧇āĻļāύ āĻ•āĻŋāĻŸâ€-āĻ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻĨāĻžāϕ⧇?
(What is usually included in a “termination kit” used during splicing?)
  • a) āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ (Cable drum)
  • b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ, āĻ•ā§āϞāĻŋāύāĻŋāĻ‚ āϟ⧁āϞ, āĻ•ā§āϰāĻŋāĻŽā§āĻĒ āϟ⧁āϞ (Connectors, cleaning tools, crimp tools)
  • c) āĻļ⧁āϧ⧁ āĻšāĻžāϤ⧁āĻĄāĻŧāĻŋ (Only hammer)
  • d) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻŽāĻŋāϟāĻžāϰ āϰ⧁āϞ (Only meter rule)
Answer (click to explore)

Correct: b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ, āĻ•ā§āϞāĻŋāύāĻŋāĻ‚ āϟ⧁āϞ, āĻ•ā§āϰāĻŋāĻŽā§āĻĒ āϟ⧁āϞ (Connectors, cleaning tools, crimp tools)

13. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āϗ⧁āĻŖāĻŽāĻžāύ āĻĒāϰ⧀āĻ•ā§āώāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧋āύ āϝāĻ¨ā§āĻ¤ā§āϰ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļāĻŋ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which instrument is most commonly used to test splice quality?)
  • a) āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽāĻŋāϟāĻžāϰ (Multimeter)
  • b) OTDR
  • c) āĻ“āϏāĻŋāϞ⧋āĻ¸ā§āϕ⧋āĻĒ (Oscilloscope)
  • d) āĻŦā§āϝāĻžāϟāĻžāϰāĻŋ āϚāĻžāĻ°ā§āϜāĻžāϰ (Battery charger)
Answer (click to explore)

Correct: b) OTDR

14. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻŽāϝāĻŧāϞāĻž āĻĨāĻžāĻ•āϞ⧇ āϕ⧀ āĻšāĻŦ⧇?
(What happens if there is dirt on the fiber during splicing?)
  • a) āϞāϏ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧ (Loss decreases)
  • b) āϞāϏ āĻŦ⧇āĻĄāĻŧ⧇ āϝāĻžāϝāĻŧ āĻāĻŦāĻ‚ āϰāĻŋāĻĢā§āϞ⧇āĻ•āĻļāύ āĻšāϝāĻŧ (Loss increases and reflection occurs)
  • c) āϕ⧋āύ⧋ āĻĒā§āϰāĻ­āĻžāĻŦ āĻĒāĻĄāĻŧ⧇ āύāĻž (No effect)
  • d) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻŦāĻžāĻĄāĻŧ⧇ (Fiber length increases)
Answer (click to explore)

Correct: b) āϞāϏ āĻŦ⧇āĻĄāĻŧ⧇ āϝāĻžāϝāĻŧ āĻāĻŦāĻ‚ āϰāĻŋāĻĢā§āϞ⧇āĻ•āĻļāύ āĻšāϝāĻŧ (Loss increases and reflection occurs)

15. āύ⧀āĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϟ⧁āϞ āύāϝāĻŧ?
(Which of the following is NOT a splicing tool?)
  • a) āĻ•ā§āϞāĻŋāĻ­āĻžāϰ (Cleaver)
  • b) āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ (Fiber stripper)
  • c) āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻĢāĻ˛ā§āϟ āϞ⧋āϕ⧇āϟāϰ (Visual fault locator)
  • d) āĻšā§‡āϝāĻŧāĻžāϰ āĻĄā§āϰāĻžāϝāĻŧāĻžāϰ (Hair dryer)
Answer (click to explore)

Correct: d) āĻšā§‡āϝāĻŧāĻžāϰ āĻĄā§āϰāĻžāϝāĻŧāĻžāϰ (Hair dryer)

16. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧋āύāϟāĻŋ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(Which should be done for safety during splicing?)
  • a) āĻ–āĻžāϞāĻŋ āĻšāĻžāϤ⧇ āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāϟāĻž (Cut fiber with bare hands)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻ—āĻ—āϞāϏ āĻ“ āĻ—ā§āϞāĻžāĻ­āϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use safety goggles and gloves)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ āϟ⧁āĻ•āϰāĻž āĻŽāĻžāϟāĻŋāϤ⧇ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Leave fiber scraps on the floor)
  • d) āϞ⧇āϜāĻžāϰ āϏāϰāĻžāϏāϰāĻŋ āĻšā§‹āϖ⧇ āĻĻ⧇āĻ–āĻž (Look directly into laser)
Answer (click to explore)

Correct: b) āϏ⧇āĻĢāϟāĻŋ āĻ—āĻ—āϞāϏ āĻ“ āĻ—ā§āϞāĻžāĻ­āϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use safety goggles and gloves)

17. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇ āϏāĻžāϧāĻžāϰāĻŖ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϞāϏ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻ•āϤ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āĻĨāĻžāϕ⧇?
(Typical fusion splice loss usually lies around which value?)
  • a) āĻĒā§āϰāĻžāϝāĻŧ 0.02–0.1 dB (About 0.02–0.1 dB)
  • b) āĻĒā§āϰāĻžāϝāĻŧ 5–10 dB
  • c) āĻĒā§āϰāĻžāϝāĻŧ 50 dB
  • d) āĻĒā§āϰāĻžāϝāĻŧ 0 dB āĻ āĻŋāĻ•āχ (Exactly 0 dB)
Answer (click to explore)

Correct: a) āĻĒā§āϰāĻžāϝāĻŧ 0.02–0.1 dB (About 0.02–0.1 dB)

18. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻĒāϰ āϕ⧇āĻŦāϞāϗ⧁āϞ⧋āϕ⧇ āϏāĻ āĻŋāĻ•āĻ­āĻžāĻŦ⧇ āϏāĻžāϜāĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž āĻšāϝāĻŧ āϕ⧋āĻĨāĻžāϝāĻŧ?
(After splicing, where are the cables properly arranged?)
  • a) āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻŸā§āϰ⧇ (Splice tray)
  • b) āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ (Cable drum)
  • c) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻĒā§āϝāĻžāύ⧇āϞ (Power panel)
  • d) āĻŦā§āϝāĻžāϟāĻžāϰāĻŋ āĻŦāĻ•ā§āϏ (Battery box)
Answer (click to explore)

Correct: a) āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻŸā§āϰ⧇ (Splice tray)

19. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ “āĻŸā§āϰāĻžāĻŦāϞāĻļ⧁āϟāĻŋāĻ‚â€ āϧāĻžāĻĒ⧇āϰ āĻ…āĻ¨ā§āϤāĻ°ā§āϭ⧁āĻ•ā§āϤ?
(Which is a part of the “troubleshooting” step during splicing?)
  • a) āύāϤ⧁āύ āĻĄā§āϰāĻžāĻŽ āϕ⧇āύāĻž (Buying new drum)
  • b) āĻŦ⧇āĻļāĻŋ āϞāϏ āĻĒāĻžāĻ“ā§ŸāĻž āϗ⧇āϞ⧇ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻĒ⧁āύāϰāĻžāϝāĻŧ āĻ•āϰāĻž (Re-splicing if high loss is observed)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϕ⧋āϰ āϰāĻ‚ āĻ•āϰāĻž (Colouring fiber core)
  • d) OTDR āĻŦāĻ¨ā§āϧ āϰāĻžāĻ–āĻž (Keeping OTDR switched off)
Answer (click to explore)

Correct: b) āĻŦ⧇āĻļāĻŋ āϞāϏ āĻĒāĻžāĻ“ā§ŸāĻž āϗ⧇āϞ⧇ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻĒ⧁āύāϰāĻžāϝāĻŧ āĻ•āϰāĻž (Re-splicing if high loss is observed)

20. āϕ⧋āύ āĻ•āĻžāύ⧇āĻ•ā§āϟāϰāϟāĻŋ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which connector is commonly used in optical fiber?)
  • a) RJ11
  • b) SC āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ (SC connector)
  • c) VGA
  • d) HDMI
Answer (click to explore)

Correct: b) SC āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ (SC connector)

Unit 3: Cable laying and Installation – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ āĻĨ⧇āϕ⧇ āϕ⧇āĻŦāϞ āύāĻžāĻŽāĻžāύ⧋āϰ āϏāĻŽāϝāĻŧ āĻĒā§āϰāĻĨāĻŽā§‡ āϕ⧋āύ āĻŦāĻŋāώāϝāĻŧāϟāĻŋ āĻĻ⧇āĻ–āĻž āϜāϰ⧁āϰāĻŋ?
(What is the first thing to check while unloading cable from a cable drum?)
  • a) āĻĄā§āϰāĻžāĻŽā§‡āϰ āϰāĻ‚ (Colour of drum)
  • b) āĻĄā§āϰāĻžāĻŽ āĻ“ āϕ⧇āĻŦāϞ⧇āϰ āĻ•ā§āώāϤāĻŋ āφāϛ⧇ āĻ•āĻŋ āύāĻž (Any damage to drum and cable)
  • c) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ (Weight of drum)
  • d) āϕ⧋āϰ āϏāĻ‚āĻ–ā§āϝāĻž (Number of cores)
Answer (click to explore)

Correct: b) āĻĄā§āϰāĻžāĻŽ āĻ“ āϕ⧇āĻŦāϞ⧇āϰ āĻ•ā§āώāϤāĻŋ āφāϛ⧇ āĻ•āĻŋ āύāĻž (Any damage to drum and cable)

2. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻ•āĻŋāĻ­āĻžāĻŦ⧇ āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(How should a cable drum normally be stored?)
  • a) āϏāĻŽā§āĻĒā§‚āĻ°ā§āĻŖ āĻ•āĻžāĻĻāĻžāĻŽāĻžāϟāĻŋāϰ āĻŽāĻ§ā§āϝ⧇ (Fully in mud)
  • b) āϏ⧋āϜāĻž āĻāĻŦāĻ‚ āϏāĻŽāϤāϞ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ (Upright on a flat surface)
  • c) āĻĸāĻžāϞ⧁āϤ⧇ āĻ—āĻĄāĻŧāĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž (Rolling on a slope)
  • d) āĻĒāĻžāύāĻŋāϰ āϭ⧇āϤāϰ⧇ (Inside water)
Answer (click to explore)

Correct: b) āϏ⧋āϜāĻž āĻāĻŦāĻ‚ āϏāĻŽāϤāϞ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ (Upright on a flat surface)

3. āĻ­ā§‚āĻ—āĻ°ā§āĻ­āĻ¸ā§āĻĨ āϕ⧇āĻŦāϞ āĻŦāĻŋāĻ›āĻžāύ⧋āϰ āϜāĻ¨ā§āϝ āϏāĻžāϧāĻžāϰāĻŖ āĻĒāĻĻā§āϧāϤāĻŋ āϕ⧋āύāϟāĻŋ?
(Which is a common method for underground cable laying?)
  • a) āĻāϝāĻŧāĻžāϰ āϞ⧇ (Air laying)
  • b) āĻŸā§āϰ⧇āĻžā§āϚāĻŋāĻ‚ (Trenching)
  • c) āĻ“āϝāĻŧā§āϝāĻžāϰāϞ⧇āϏ (Wireless)
  • d) āϕ⧇āĻŦāϞ āϏāĻžāϏāĻĒ⧇āύāĻļāύ (Cable suspension)
Answer (click to explore)

Correct: b) āĻŸā§āϰ⧇āĻžā§āϚāĻŋāĻ‚ (Trenching)

4. āϕ⧇āĻŦāϞ āĻĄāĻžāĻ•ā§āϤ⧇āϰ āϭ⧇āϤāϰ āϕ⧇āĻŦāϞ āĻĸā§‹āĻ•āĻžāύ⧋āϰ āĻĒāĻĻā§āϧāϤāĻŋāϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(What is the method of inserting cable inside ducts called?)
  • a) āĻŦā§āĻ˛ā§‹ā§ŸāĻŋāĻ‚ (Blowing)
  • b) āĻ“āϝāĻŧ⧇āĻ˛ā§āĻĄāĻŋāĻ‚ (Welding)
  • c) āϏ⧋āĻ˛ā§āĻĄāĻžāϰāĻŋāĻ‚ (Soldering)
  • d) āĻ—ā§āϞ⧁āχāĻ‚ (Gluing)
Answer (click to explore)

Correct: a) āĻŦā§āĻ˛ā§‹ā§ŸāĻŋāĻ‚ (Blowing)

5. āϕ⧇āĻŦāϞ āϟāĻžāύāĻžāϰ āϏāĻŽāϝāĻŧ “āĻĢāĻŋāĻ—āĻžāϰ-ā§Žâ€ āĻĒāĻĻā§āϧāϤāĻŋ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻžāϰ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the purpose of using the “figure-8” method while handling cable?)
  • a) āϕ⧇āĻŦāϞāϕ⧇ āϏāĻžāϜāĻŋāϝāĻŧ⧇ āϏ⧁āĻ¨ā§āĻĻāϰ āĻĻ⧇āĻ–āĻžāύ⧋ (To make cable look neat)
  • b) āϕ⧇āĻŦāϞ āĻĒā§āϝāĻžāρāϚ āĻ“ āϟ⧁āχāĻ¸ā§āϟ āĻ•āĻŽāĻžāύ⧋ (To reduce twists and kinks)
  • c) āϕ⧇āĻŦāϞ āĻ­āĻžāϰ⧀ āĻ•āϰāĻž (To make cable heavier)
  • d) āϕ⧇āĻŦāϞ āϛ⧋āϟ āĻ•āϰāĻž (To shorten cable)
Answer (click to explore)

Correct: b) āϕ⧇āĻŦāϞ āĻĒā§āϝāĻžāρāϚ āĻ“ āϟ⧁āχāĻ¸ā§āϟ āĻ•āĻŽāĻžāύ⧋ (To reduce twists and kinks)

6. āϕ⧇āĻŦāϞ āχāύāĻ¸ā§āϟāϞ āĻ•āϰāĻžāϰ āφāϗ⧇ āϕ⧋āύ āύāĻĨāĻŋ āĻ…āύ⧁āϝāĻžāϝāĻŧā§€ āĻ•āĻžāϜ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(Before installing cables, work should be done according to which document?)
  • a) āĻŦāĻŋāϞ āĻ­āĻžāωāϚāĻžāϰ (Bill voucher)
  • b) āϰ⧁āϟ āĻĒā§āĻ˛ā§āϝāĻžāύ/āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻĒā§āĻ˛ā§āϝāĻžāύ (Route/installation plan)
  • c) āĻŦā§āϝāĻžāĻ™ā§āĻ• āĻ¸ā§āĻŸā§‡āϟāĻŽā§‡āĻ¨ā§āϟ (Bank statement)
  • d) āχāύāĻ­āϝāĻŧ⧇āϏ (Invoice)
Answer (click to explore)

Correct: b) āϰ⧁āϟ āĻĒā§āĻ˛ā§āϝāĻžāύ/āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻĒā§āĻ˛ā§āϝāĻžāύ (Route/installation plan)

7. āĻ­ā§‚āĻ—āĻ°ā§āĻ­āĻ¸ā§āĻĨ āϕ⧇āĻŦāϞ āĻŦāĻŋāĻ›āĻžāύ⧋āϰ āϏāĻŽāϝāĻŧ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϧāϰāύ⧇āϰ āĻĒāĻžāχāĻĒ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which type of pipe is generally used for underground cable laying?)
  • a) āĻ—ā§āϝāĻžāϏ āĻĒāĻžāχāĻĒ (Gas pipe)
  • b) āĻĄā§‡āĻĄāĻŋāϕ⧇āĻŸā§‡āĻĄ āĻ•āύāĻĄā§āχāϟ/āĻĄāĻžāĻ•ā§āϤ (Dedicated conduits/ducts)
  • c) āĻĒāĻžāύāĻŋāϰ āĻĒāĻžāχāĻĒ (Water pipe)
  • d) āĻĄā§āϰ⧇āύ⧇āϜ āĻĒāĻžāχāĻĒ (Drainage pipe)
Answer (click to explore)

Correct: b) āĻĄā§‡āĻĄāĻŋāϕ⧇āĻŸā§‡āĻĄ āĻ•āύāĻĄā§āχāϟ/āĻĄāĻžāĻ•ā§āϤ (Dedicated conduits/ducts)

8. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āϏāĻžāχāϟ āĻ•āĻ¨ā§āĻĄāĻŋāĻļāύāϟāĻŋ āĻā§āρāĻ•āĻŋāĻĒā§‚āĻ°ā§āĻŖ?
(Which site condition is risky during cable laying?)
  • a) āĻļ⧁āĻ•āύ⧋ āϏāĻŽāϤāϞ āϜāĻŽāĻŋ (Dry flat land)
  • b) āϜāϞāĻžāĻŦāĻĻā§āϧ āĻāϞāĻžāĻ•āĻž (Water-logged area)
  • c) āωāρāϚ⧁ āϰāĻžāĻ¸ā§āϤāĻž (Elevated road)
  • d) āĻ•āĻ‚āĻ•ā§āϰāĻŋāϟ āĻĢā§āϞ⧋āϰ (Concrete floor)
Answer (click to explore)

Correct: b) āϜāϞāĻžāĻŦāĻĻā§āϧ āĻāϞāĻžāĻ•āĻž (Water-logged area)

9. āϕ⧇āĻŦāϞ āϟāĻžāύāĻžāϰ āϏāĻŽāϝāĻŧ āĻŸā§‡āύāĻļāύ āϖ⧁āĻŦ āĻŦ⧇āĻļāĻŋ āĻšāϞ⧇ āϕ⧀ āĻšāϤ⧇ āĻĒāĻžāϰ⧇?
(What may happen if the pulling tension is too high during cable laying?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āĻ•āĻ°ā§āĻŽāĻ•ā§āώāĻŽāϤāĻž āĻŦāĻžāĻĄāĻŧ⧇ (Cable performance improves)
  • b) āϕ⧇āĻŦāϞ⧇ āĻ­āĻžāĻ™āύ/āĻ•ā§āώāϤāĻŋ āĻšāϤ⧇ āĻĒāĻžāϰ⧇ (Cable may break/get damaged)
  • c) āϕ⧋āύ⧋ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻšāϝāĻŧ āύāĻž (No change)
  • d) āϕ⧇āĻŦāϞ āφāϰāĻ“ āύāĻŽāύ⧀āϝāĻŧ āĻšāϝāĻŧ (Cable becomes more flexible)
Answer (click to explore)

Correct: b) āϕ⧇āĻŦāϞ⧇ āĻ­āĻžāĻ™āύ/āĻ•ā§āώāϤāĻŋ āĻšāϤ⧇ āĻĒāĻžāϰ⧇ (Cable may break/get damaged)

10. āĻāϝāĻŧāĻžāϰāĻŋāϝāĻŧāĻžāϞ āϕ⧇āĻŦāϞ āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āϕ⧋āĻĨāĻžāϝāĻŧ āĻŦ⧇āĻļāĻŋ āωāĻĒāϝ⧋āĻ—ā§€?
(Where is aerial cable installation more suitable?)
  • a) āϏāĻŽā§āĻĻā§āϰ⧇āϰ āύ⧀āĻšā§‡ (Under sea)
  • b) āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āϖ⧁āρāϟāĻŋ/āĻĒā§‹āϞ āĻŦāϰāĻžāĻŦāϰ (Along existing poles)
  • c) āĻ—ā§āϝāĻžāϏ āĻĒāĻžāχāĻĒ⧇āϰ āϭ⧇āϤāϰ⧇ (Inside gas pipes)
  • d) āĻ­āĻŦāύ⧇āϰ āĻ­āĻŋāϤāϰ āĻĒāĻžāύāĻŋāϰ āĻŸā§āϝāĻžāĻ™ā§āϕ⧇ (Inside water tanks in buildings)
Answer (click to explore)

Correct: b) āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āϖ⧁āρāϟāĻŋ/āĻĒā§‹āϞ āĻŦāϰāĻžāĻŦāϰ (Along existing poles)

11. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ āĻ˜ā§‹āϰāĻžāύ⧋āϰ āϏāĻŽāϝāĻŧ āϕ⧀āϏ⧇āϰ āĻĻāĻŋāϕ⧇ āϖ⧇āϝāĻŧāĻžāϞ āϰāĻžāĻ–āϤ⧇ āĻšāĻŦ⧇?
(What must be taken care of while rolling a cable drum?)
  • a) āϝ⧇āĻĻāĻŋāϕ⧇ āϖ⧁āĻļāĻŋ āĻ—āĻĄāĻŧāĻžāύ⧋ (Roll in any direction)
  • b) āύāĻŋāĻ°ā§āϧāĻžāϰāĻŋāϤ āĻ˜ā§‹āϰāĻžāύ⧋āϰ āĻĻāĻŋāĻ• āĻ…āύ⧁āϏāϰāĻŖ āĻ•āϰāĻž (Follow marked rolling direction)
  • c) āĻĻā§āϰ⧁āϤ āĻ—āϤāĻŋ āϰāĻžāĻ–āĻž (Keep very high speed)
  • d) āĻĄā§āϰāĻžāĻŽāϕ⧇ āĻāĻ• āĻĒāĻžāĻļ⧇ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Throw drum on one side)
Answer (click to explore)

Correct: b) āύāĻŋāĻ°ā§āϧāĻžāϰāĻŋāϤ āĻ˜ā§‹āϰāĻžāύ⧋āϰ āĻĻāĻŋāĻ• āĻ…āύ⧁āϏāϰāĻŖ āĻ•āϰāĻž (Follow marked rolling direction)

12. āϕ⧇āĻŦāϞ āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āĻĒāĻžāχāĻĒāϞāĻžāχāύāϗ⧁āϞ⧋āϰ āĻŽā§āϝāĻžāĻĒ āϕ⧇āύ āϜāϰ⧁āϰāĻŋ?
(Why is a map of existing pipelines important during cable installation?)
  • a) āĻļ⧁āϧ⧁ āϰāĻ™ āĻŽāĻŋāϞāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (Only to match colours)
  • b) āĻ—ā§āϝāĻžāϏ/āĻĒāĻžāύāĻŋ āϞāĻžāχāύ⧇āϰ āĻ•ā§āώāϤāĻŋ āĻāĻĄāĻŧāĻžāϤ⧇ (To avoid damaging gas/water lines)
  • c) āϕ⧇āĻŦāϞāϕ⧇ āĻ­āĻžāϰ⧀ āĻ•āϰāϤ⧇ (To make cable heavy)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻ—āϤāĻŋ āĻŦāĻžāĻĄāĻŧāĻžāϤ⧇ (To increase cable speed)
Answer (click to explore)

Correct: b) āĻ—ā§āϝāĻžāϏ/āĻĒāĻžāύāĻŋ āϞāĻžāχāύ⧇āϰ āĻ•ā§āώāϤāĻŋ āĻāĻĄāĻŧāĻžāϤ⧇ (To avoid damaging gas/water lines)

13. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ āĻŽāĻŋāύāĻŋāĻŽāĻžāĻŽ āĻŦ⧇āĻ¨ā§āĻĄ āϰ⧇āĻĄāĻŋāϝāĻŧāĻžāϏ āĻŽāĻžāύāĻž āύāĻž āĻšāϞ⧇ āϕ⧀ āĻšāĻŦ⧇?
(What happens if minimum bend radius is not maintained during installation?)
  • a) āϕ⧋āύ⧋ āĻĒā§āϰāĻ­āĻžāĻŦ āĻĒāĻĄāĻŧ⧇ āύāĻž (No effect)
  • b) āĻŦ⧇āĻ¨ā§āĻĄ āϞāϏ/āĻ•ā§āώāϝāĻŧ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒāĻžāϝāĻŧ (Bend loss increases)
  • c) āĻŦā§āϝāĻžāĻ¨ā§āĻĄāωāχāĻĨ āĻŦāĻžāĻĄāĻŧ⧇ (Bandwidth increases)
  • d) āϕ⧇āĻŦāϞ āĻĒāĻžāϤāϞāĻž āĻšāϝāĻŧ (Cable becomes thinner)
Answer (click to explore)

Correct: b) āĻŦ⧇āĻ¨ā§āĻĄ āϞāϏ/āĻ•ā§āώāϝāĻŧ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒāĻžāϝāĻŧ (Bend loss increases)

14. “āĻ¸ā§āĻŸā§āϝāĻžāĻ¨ā§āĻĄāĻžāĻ°ā§āĻĄ āϕ⧇āĻŦāϞ āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻĒā§āϰāϏ⧇āĻ¸â€-āĻ āĻĒā§āϰāĻĨāĻŽ āϧāĻžāĻĒ āϕ⧀ āĻšāĻ“āϝāĻŧāĻž āωāϚāĻŋāϤ?
(What should be the first step in the standard cable installation process?)
  • a) āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āĻ•āϰāĻž (Testing)
  • b) āĻĒāϰāĻŋāĻ•āĻ˛ā§āĻĒāύāĻž āĻ“ āϏāĻžāχāϟ āϏāĻžāĻ°ā§āϭ⧇ (Planning and site survey)
  • c) āϕ⧇āĻŦāϞ āĻ•āĻžāϟāĻž (Cutting cable)
  • d) āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ (Splicing)
Answer (click to explore)

Correct: b) āĻĒāϰāĻŋāĻ•āĻ˛ā§āĻĒāύāĻž āĻ“ āϏāĻžāχāϟ āϏāĻžāĻ°ā§āϭ⧇ (Planning and site survey)

15. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ “āĻ•ā§āϝāĻžāĻŦāϞ āĻĒ⧁āϞāĻŋāĻ‚ āωāχāĻžā§āĻšâ€ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ āϕ⧇āύ?
(Why is a cable pulling winch used during cable laying?)
  • a) āϕ⧇āĻŦāϞ āĻ—āϰāĻŽ āĻ•āϰāϤ⧇ (To heat cable)
  • b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āĻŸā§‡āύāĻļāύ āĻĻāĻŋāϝāĻŧ⧇ āϕ⧇āĻŦāϞ āϟāĻžāύāϤ⧇ (To pull cable with controlled tension)
  • c) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻ•āϰāϤ⧇ (To paint cable)
  • d) āϕ⧇āĻŦāϞ āĻ•āĻžāϟāϤ⧇ (To cut cable)
Answer (click to explore)

Correct: b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āĻŸā§‡āύāĻļāύ āĻĻāĻŋāϝāĻŧ⧇ āϕ⧇āĻŦāϞ āϟāĻžāύāϤ⧇ (To pull cable with controlled tension)

16. āϰāĻžāĻ¸ā§āϤāĻž āĻ•ā§āϰāϏ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϕ⧇āĻŦāϞ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻŦāϏāĻžāύ⧋ āĻšāϝāĻŧ?
(How is cable usually laid while crossing a road?)
  • a) āϏāϰāĻžāϏāϰāĻŋ āϰāĻžāĻ¸ā§āϤāĻžāϰ āωāĻĒāϰ āĻĻāĻŋāϝāĻŧ⧇ (Directly over the road)
  • b) āφāĻ¨ā§āĻĄāĻžāϰāĻ—ā§āϰāĻžāωāĻ¨ā§āĻĄ āĻĄāĻžāĻ•ā§āϟ/āĻĒāĻžāχāĻĒ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ (Through underground ducts/pipes)
  • c) āĻ—āĻžāϛ⧇āϰ āϏāĻžāĻĨ⧇ āĻā§āϞāĻŋāϝāĻŧ⧇ (Hanging on trees)
  • d) āĻĒāĻžāύāĻŋāϰ āϭ⧇āϤāϰ (Inside water on road)
Answer (click to explore)

Correct: b) āφāĻ¨ā§āĻĄāĻžāϰāĻ—ā§āϰāĻžāωāĻ¨ā§āĻĄ āĻĄāĻžāĻ•ā§āϟ/āĻĒāĻžāχāĻĒ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ (Through underground ducts/pipes)

17. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚ āĻļ⧇āώ āĻšāĻ“āϝāĻŧāĻžāϰ āĻĒāϰ⧇ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be done after completing cable laying?)
  • a) āϕ⧋āύ⧋ āĻŸā§‡āĻ¸ā§āϟ āύāĻž āĻ•āϰ⧇ āϏāĻžāχāϟ āϛ⧇āĻĄāĻŧ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Leave site without testing)
  • b) āϕ⧇āĻŦāϞ āĻŸā§‡āĻ¸ā§āϟ āĻ“ āĻĄāϕ⧁āĻŽā§‡āĻ¨ā§āĻŸā§‡āĻļāύ (Cable testing and documentation)
  • c) āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āϛ⧋āϟ āĻ•āϰāĻž (Cut cable shorter)
  • d) āϏāĻŦ āϕ⧇āĻŦāϞ āϤ⧁āϞ⧇ āύ⧇āĻ“āϝāĻŧāĻž (Remove all cables)
Answer (click to explore)

Correct: b) āϕ⧇āĻŦāϞ āĻŸā§‡āĻ¸ā§āϟ āĻ“ āĻĄāϕ⧁āĻŽā§‡āĻ¨ā§āĻŸā§‡āĻļāύ (Cable testing and documentation)

18. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽā§‡āϰ “āĻā§āϝāĻžāϰ⧋ āĻŽāĻžāĻ°ā§āĻ•â€ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What does the arrow mark on a cable drum indicate?)
  • a) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ (Weight of drum)
  • b) āĻ˜ā§‹āϰāĻžāύ⧋āϰ āϏāĻ āĻŋāĻ• āĻĻāĻŋāĻ• (Correct direction of rolling)
  • c) āϕ⧋āϰ āϏāĻ‚āĻ–ā§āϝāĻž (Number of cores)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻ•āĻžāϞāĻžāϰ āϕ⧋āĻĄ (Cable colour code)
Answer (click to explore)

Correct: b) āĻ˜ā§‹āϰāĻžāύ⧋āϰ āϏāĻ āĻŋāĻ• āĻĻāĻŋāĻ• (Correct direction of rolling)

19. āϕ⧇āĻŦāϞ āĻ¸ā§āĻŸā§‹āϰ⧇āĻœā§‡āϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ āϏāĻ āĻŋāĻ•?
(Which is correct regarding cable storage?)
  • a) āĻĄā§āϰāĻžāĻŽāϕ⧇ āĻ•āĻžāĻĻāĻž āĻ“ āĻĒāĻžāύāĻŋāϤ⧇ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Keep drum in mud and water)
  • b) āϏāϰāĻžāϏāϰāĻŋ āϏ⧂āĻ°ā§āϝ⧇āϰ āϤāĻžāĻĒ⧇ āĻĻā§€āĻ°ā§āϘāĻĻāĻŋāύ āϰāĻžāĻ–āĻž (Keep long in direct sunlight)
  • c) āĻļ⧁āĻ•āύ⧋, āϏāĻŽāϤāϞ āĻ“ āύāĻŋāϰāĻžāĻĒāĻĻ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ āϰāĻžāĻ–āĻž (Store in dry, flat and safe place)
  • d) āϝ⧇āĻ­āĻžāĻŦ⧇ āĻšā§‹āĻ• āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Keep anywhere casually)
Answer (click to explore)

Correct: c) āĻļ⧁āĻ•āύ⧋, āϏāĻŽāϤāϞ āĻ“ āύāĻŋāϰāĻžāĻĒāĻĻ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ āϰāĻžāĻ–āĻž (Store in dry, flat and safe place)

20. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ “āϏ⧇āĻĢāϟāĻŋ āĻ“ āϏāĻŋāĻ•āĻŋāωāϰāĻŋāϟāĻŋ āĻ…āĻŦ āϏāĻžāχāĻŸâ€ āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What is meant by “safety and security of site” during installation?)
  • a) āĻļ⧁āϧ⧁ āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āϏāĻ āĻŋāĻ• āĻĨāĻžāĻ•āĻž (Only correct cable colour)
  • b) āĻŽāĻžāύ⧁āώ, āϝāĻ¨ā§āĻ¤ā§āϰāĻĒāĻžāϤāĻŋ āĻ“ āĻ…āĻ¨ā§āϝāĻžāĻ¨ā§āϝ⧇āϰ āϏ⧁āϰāĻ•ā§āώāĻž āύāĻŋāĻļā§āϚāĻŋāϤ āĻ•āϰāĻž (Ensuring safety of people, tools and surroundings)
  • c) āĻļ⧁āϧ⧁ āĻĻā§āϰ⧁āϤ āĻ•āĻžāϜ āĻļ⧇āώ āĻ•āϰāĻž (Only finishing work fast)
  • d) āϕ⧇āĻŦāϞ āĻŦ⧇āĻļāĻŋ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Using more cable)
Answer (click to explore)

Correct: b) āĻŽāĻžāύ⧁āώ, āϝāĻ¨ā§āĻ¤ā§āϰāĻĒāĻžāϤāĻŋ āĻ“ āĻ…āĻ¨ā§āϝāĻžāĻ¨ā§āϝ⧇āϰ āϏ⧁āϰāĻ•ā§āώāĻž āύāĻŋāĻļā§āϚāĻŋāϤ āĻ•āϰāĻž (Ensuring safety of people, tools and surroundings)

Unit 4: Testing Installation of OFC – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. OTDR-āĻāϰ āĻĒā§‚āĻ°ā§āĻŖāϰ⧂āĻĒ āϕ⧀?
(What is the full form of OTDR?)
  • a) Optical Time Data Recorder
  • b) Optical Time Domain Reflectometer
  • c) Optical Test Digital Receiver
  • d) Optical Transmission Distance Recorder
Answer (click to explore)

Correct: b) Optical Time Domain Reflectometer

2. OTDR āĻ¸ā§āĻ•ā§āϰāĻŋāύ⧇ āĻ…āύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻ…āĻ•ā§āώ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻĻ⧇āĻ–āĻžāύ⧋ āĻšāϝāĻŧ?
(What is usually shown on the horizontal axis of an OTDR display?)
  • a) āϞāϏ (Loss)
  • b) āĻĻā§‚āϰāĻ¤ā§āĻŦ (Distance)
  • c) āĻ­ā§‹āĻ˛ā§āĻŸā§‡āϜ (Voltage)
  • d) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž (Temperature)
Answer (click to explore)

Correct: b) āĻĻā§‚āϰāĻ¤ā§āĻŦ (Distance)

3. OTDR āĻ¸ā§āĻ•ā§āϰāĻŋāύ⧇ āωāĻ˛ā§āϞāĻŽā§āĻŦ āĻ…āĻ•ā§āώ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻĻ⧇āĻ–āĻžāύ⧋ āĻšāϝāĻŧ?
(What is usually shown on the vertical axis of an OTDR display?)
  • a) āϞāϏ/āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϞ⧇āϭ⧇āϞ (Loss/Power level)
  • b) āϏāĻŽāϝāĻŧ (Time)
  • c) āϕ⧋āϰ āĻŦā§āϝāĻžāϏ (Core diameter)
  • d) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž (Temperature)
Answer (click to explore)

Correct: a) āϞāϏ/āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϞ⧇āϭ⧇āϞ (Loss/Power level)

4. āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻĢāĻ˛ā§āϟ āϞ⧋āϕ⧇āϟāϰ (VFL)-āĻāϰ āĻŽā§‚āϞ āĻŦā§āϝāĻŦāĻšāĻžāϰ āϕ⧀?-
(What is the main use of a Visual Fault Locator (VFL)?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻšā§‡āĻ• āĻ•āϰāĻž (Check cable colour)
  • b) āĻ­āĻžāĻ™āĻž/āĻ•ā§āώāϤāĻŋāĻ—ā§āϰāĻ¸ā§āϤ āĻĒāϝāĻŧ⧇āĻ¨ā§āϟ āĻĻ⧃āĻļā§āϝāĻŽāĻžāύ āĻ•āϰāĻž (Visually locate breaks/faults)
  • c) āϕ⧇āĻŦāϞ⧇āϰ āĻ“āϜāύ āĻŽāĻžāĻĒāĻž (Measure cable weight)
  • d) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻŽāĻžāĻĒāĻž (Measure temperature)
Answer (click to explore)

Correct: b) āĻ­āĻžāĻ™āĻž/āĻ•ā§āώāϤāĻŋāĻ—ā§āϰāĻ¸ā§āϤ āĻĒāϝāĻŧ⧇āĻ¨ā§āϟ āĻĻ⧃āĻļā§āϝāĻŽāĻžāύ āĻ•āϰāĻž (Visually locate breaks/faults)

5. āĻ•āύ⧇āĻ•ā§āϟāϰ⧇āϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āϧ⧁āϞ⧋ āĻŦāĻž āĻŽāϝāĻŧāϞāĻž āφāϛ⧇ āĻ•āĻŋāύāĻž āĻĒāϰ⧀āĻ•ā§āώāĻž āĻ•āϰāϤ⧇ āϕ⧋āύ āϝāĻ¨ā§āĻ¤ā§āϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which instrument is used to inspect dust/dirt on connector end faces?)
  • a) āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻĢāĻ˛ā§āϟ āϞ⧋āϕ⧇āϟāϰ (VFL)
  • b) āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āĻŽāĻžāχāĻ•ā§āϰ⧋āĻ¸ā§āϕ⧋āĻĒ (Inspection microscope)
  • c) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ (Power meter)
  • d) āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽāĻŋāϟāĻžāϰ (Multimeter)
Answer (click to explore)

Correct: b) āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āĻŽāĻžāχāĻ•ā§āϰ⧋āĻ¸ā§āϕ⧋āĻĒ (Inspection microscope)

6. āϕ⧇āĻŦāϞ āĻ•āĻ¨ā§āϟāĻŋāύāĻŋāωāϟāĻŋ āĻšā§‡āĻ• āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĻā§āϰ⧁āϤ āĻĒāĻĻā§āϧāϤāĻŋ?
(Which is a quick method to check fiber continuity?)
  • a) VFL āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Using VFL)
  • b) āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āĻĻ⧇āĻ–āĻž (Cutting cable)
  • c) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻŽāĻžāĻĒāĻž (Measuring temperature)
  • d) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻšā§‹āϖ⧇ āĻĻ⧇āĻ–āĻž (Only looking by naked eye)
Answer (click to explore)

Correct: a) VFL āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Using VFL)

7. āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āĻŽā§‚āϞ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the main purpose of an insertion loss test?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻŽāĻžāĻĒāĻž (To measure cable length)
  • b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ/āϞāĻŋāĻ‚āĻ• āĻĻāĻŋāϝāĻŧ⧇ āφāϞ⧋āϰ āĻ•ā§āώāϝāĻŧ āĻŽāĻžāĻĒāĻž (To measure light loss through connector/link)
  • c) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻŽāĻžāĻĒāĻž (To measure temperature)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ āĻŽāĻžāĻĒāĻž (To measure drum weight)
Answer (click to explore)

Correct: b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ/āϞāĻŋāĻ‚āĻ• āĻĻāĻŋāϝāĻŧ⧇ āφāϞ⧋āϰ āĻ•ā§āώāϝāĻŧ āĻŽāĻžāĻĒāĻž (To measure light loss through connector/link)

8. āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ āĻĻāĻŋāϝāĻŧ⧇ āϕ⧀ āĻŽāĻžāĻĒāĻž āĻšāϝāĻŧ?
(What is measured using an optical power meter?)
  • a) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž (Temperature)
  • b) āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϞ⧇āϭ⧇āϞ (Optical power level)
  • c) āϕ⧇āĻŦāϞ⧇āϰ āĻŦā§āϝāĻžāϏ (Cable diameter)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻ“āϜāύ (Cable weight)
Answer (click to explore)

Correct: b) āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϞ⧇āϭ⧇āϞ (Optical power level)

9. OTDR āĻŸā§āϰ⧇āϏ⧇ āĻāĻ•āϟāĻŋ āĻšāĻ āĻžā§Ž āĻŦāĻĄāĻŧ āĻĄā§āϰāĻĒ āϕ⧀ āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ⧇?
(What does a sudden large drop in an OTDR trace indicate?)
  • a) āϕ⧋āύ⧋ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āύāϝāĻŧ (No change)
  • b) āĻŦāĻĄāĻŧ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϰ⧇āĻ• āĻŦāĻž āĻĢāĻžāχāĻŦāĻžāϰ āĻļ⧇āώ (Major fiber break or fiber end)
  • c) āϕ⧇āĻŦāϞ āĻŦā§āϝāĻžāϏ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ (Change in cable diameter)
  • d) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ (Change in cable colour)
Answer (click to explore)

Correct: b) āĻŦāĻĄāĻŧ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϰ⧇āĻ• āĻŦāĻž āĻĢāĻžāχāĻŦāĻžāϰ āĻļ⧇āώ (Major fiber break or fiber end)

10. āĻ•āύ⧇āĻ•ā§āϟāϰ āĻ•ā§āϞāĻŋāύāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(What is commonly used for connector cleaning?)
  • a) āĻ•āĻžāĻĒāĻĄāĻŧ⧇āϰ āϟ⧁āĻ•āϰāĻž āĻ“ āĻĒāĻžāύāĻŋ (Cloth and water)
  • b) āϞāĻŋāĻ¨ā§āϟ-āĻĢā§āϰāĻŋ āϟāĻŋāĻ¸ā§āϝ⧁ āĻ“ āφāχāϏ⧋āĻĒā§āϰ⧋āĻĒāĻžāχāϞ āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ (Lint-free tissue and isopropyl alcohol)
  • c) āϤ⧇āϞ (Oil)
  • d) āĻŦāĻžāϞāĻŋ (Sand)
Answer (click to explore)

Correct: b) āϞāĻŋāĻ¨ā§āϟ-āĻĢā§āϰāĻŋ āϟāĻŋāĻ¸ā§āϝ⧁ āĻ“ āφāχāϏ⧋āĻĒā§āϰ⧋āĻĒāĻžāχāϞ āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ (Lint-free tissue and isopropyl alcohol)

11. āĻŦ⧇āϝāĻŧāĻžāϰ āĻĢāĻžāχāĻŦāĻžāϰ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the purpose of bare fiber testing?)
  • a) āϕ⧇āĻŦāϞ āĻœā§āϝāĻžāϕ⧇āĻŸā§‡āϰ āĻļāĻ•ā§āϤāĻŋ āĻĻ⧇āĻ–āĻž (To see jacket strength)
  • b) āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāϭ⧇āϰ āϗ⧁āĻŖāĻŽāĻžāύ āĻĻ⧇āĻ–āĻž (To check protection sleeve quality)
  • c) āϕ⧋āϰ āĻ“ āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚āϝāĻŧ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ āϝāĻžāĻšā§āϛ⧇ āĻ•āĻŋāύāĻž āĻĻ⧇āĻ–āĻž (To see if signal passes through core and cladding)
  • d) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻĻ⧇āĻ–āĻž (To see cable colour)
Answer (click to explore)

Correct: c) āϕ⧋āϰ āĻ“ āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚āϝāĻŧ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ āϝāĻžāĻšā§āϛ⧇ āĻ•āĻŋāύāĻž āĻĻ⧇āĻ–āĻž (To see if signal passes through core and cladding)

12. āϰāĻŋāϟāĻžāĻ°ā§āύ āϞāϏ āĻŸā§‡āĻ¸ā§āĻŸā§‡ āϕ⧀ āĻŽāĻžāĻĒāĻž āĻšāϝāĻŧ?
(What is measured in a return loss test?)
  • a) āϏāĻžāĻŽāύ⧇āϰ āĻĻāĻŋāϕ⧇ āϝāĻžāĻ“āϝāĻŧāĻž āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Forward power)
  • b) āĻĢāĻŋāϰ⧇ āφāϏāĻž āĻĒā§āϰāϤāĻŋāĻĢāϞāĻŋāϤ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Reflected power coming back)
  • c) āϕ⧇āĻŦāϞ⧇āϰ āĻ“āϜāύ (Cable weight)
  • d) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž (Temperature)
Answer (click to explore)

Correct: b) āĻĢāĻŋāϰ⧇ āφāϏāĻž āĻĒā§āϰāϤāĻŋāĻĢāϞāĻŋāϤ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Reflected power coming back)

13. āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚-āĻāϰ āφāϗ⧇ “āĻŸā§‡āĻ¸ā§āϟ āĻĒā§āϰāĻŋāĻĒāĻžāϰ⧇āĻļāĻ¨â€-āĻ āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āĻ•āĻžāϜāϟāĻŋ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(Which task should be done during test preparation?)
  • a) āϏāĻŦ āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āύāĻž āϖ⧁āϞ⧇ āϰāĻžāĻ–āĻž (Not touching any connector)
  • b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āĻ“ āĻĢāĻžāχāĻŦāĻžāϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻ•āϰāĻž (Cleaning connectors and fiber ends)
  • c) āϏāĻŦ āϝāĻ¨ā§āĻ¤ā§āϰ āĻŦāĻ¨ā§āϧ āϰāĻžāĻ–āĻž (Keeping all instruments off)
  • d) āĻļ⧁āϧ⧁ āϕ⧇āĻŦāϞ āĻ•āĻžāϟāĻž (Only cutting cable)
Answer (click to explore)

Correct: b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āĻ“ āĻĢāĻžāχāĻŦāĻžāϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻ•āϰāĻž (Cleaning connectors and fiber ends)

14. āχāύāĻ¸ā§āϟāϞ āĻ•āϰāĻž OFC āϏāĻŋāĻ¸ā§āĻŸā§‡āĻŽ āĻ¸ā§āĻĒ⧇āϏāĻŋāĻĢāĻŋāϕ⧇āĻļāύ āĻŽā§‡āύ⧇ āϚāϞāϛ⧇ āĻ•āĻŋāύāĻž āϤāĻž āύāĻŋāĻļā§āϚāĻŋāϤ āĻ•āϰāϤ⧇ āϕ⧀ āϜāϰ⧁āϰāĻŋ?
(What is essential to confirm that the installed OFC system meets specifications?)
  • a) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻšā§‡āĻ• (Only visual check)
  • b) āĻĒā§‚āĻ°ā§āĻŖāĻžāĻ™ā§āĻ— āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āĻ“ āϰāĻŋāĻĒā§‹āĻ°ā§āϟāĻŋāĻ‚ (Complete testing and reporting)
  • c) āĻļ⧁āϧ⧁ āϕ⧇āĻŦāϞ āϞ⧇āĻ‚āĻĨ āĻŽāĻžāĻĒāĻž (Only measuring cable length)
  • d) āĻļ⧁āϧ⧁ āĻĄā§āϰāĻžāĻŽ āύāĻŽā§āĻŦāϰ āϞ⧇āĻ–āĻž (Only writing drum number)
Answer (click to explore)

Correct: b) āĻĒā§‚āĻ°ā§āĻŖāĻžāĻ™ā§āĻ— āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āĻ“ āϰāĻŋāĻĒā§‹āĻ°ā§āϟāĻŋāĻ‚ (Complete testing and reporting)

15. OTDR āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ “āĻĄā§‡āĻĄ āĻœā§‹āĻ¨â€ āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What is meant by “dead zone” in OTDR usage?)
  • a) āϝ⧇āĻ–āĻžāύ⧇ āϕ⧋āύ⧋ āĻŸā§āϰ⧇āϏ āύ⧇āχ (Region with no trace)
  • b) āϝ⧇āĻ–āĻžāύ⧇ OTDR āĻĒāϰāĻŋāĻŽāĻžāĻĒ āϏāĻ āĻŋāĻ• āύāϝāĻŧ (Region where OTDR measurement is not accurate)
  • c) āϝ⧇āĻ–āĻžāύ⧇ āĻĢāĻžāχāĻŦāĻžāϰ āύ⧇āχ (Region with no fiber)
  • d) āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻĢāĻžāρāĻ•āĻž āĻ…āĻ‚āĻļ (Empty part of drum)
Answer (click to explore)

Correct: b) āϝ⧇āĻ–āĻžāύ⧇ OTDR āĻĒāϰāĻŋāĻŽāĻžāĻĒ āϏāĻ āĻŋāĻ• āύāϝāĻŧ (Region where OTDR measurement is not accurate)

16. āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āĻŽāĻžāχāĻ•ā§āϰ⧋āĻ¸ā§āϕ⧋āĻĒ āĻŦā§āϝāĻŦāĻšāĻžāϰ⧇āϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻž āύāĻŋāĻ°ā§āĻĻ⧇āĻļāύāĻž?
(Which is a safety precaution while using an inspection microscope?)
  • a) āϞ⧇āϜāĻžāϰ āϚāĻžāϞ⧁ āϰ⧇āϖ⧇ āϏāϰāĻžāϏāϰāĻŋ āĻĻ⧇āĻ–āĻž (Look directly while laser is ON)
  • b) āύāĻŋāĻļā§āϚāĻŋāϤ āĻšāĻ“āϝāĻŧāĻž āϝ⧇ āϕ⧋āύ⧋ āϞāĻžāχāĻ­ āϞ⧇āϜāĻžāϰ āϝ⧁āĻ•ā§āϤ āύ⧇āχ (Ensure no live laser is connected)
  • c) āĻšā§‹āĻ– āϖ⧁āĻŦ āĻ•āĻžāϛ⧇ āύāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Keep eye too close)
  • d) āϕ⧋āύ⧋ āφāϞ⧋ āĻŦā§āϝāĻŦāĻšāĻžāϰ āύāĻž āĻ•āϰāĻž (Use no light at all)
Answer (click to explore)

Correct: b) āύāĻŋāĻļā§āϚāĻŋāϤ āĻšāĻ“āϝāĻŧāĻž āϝ⧇ āϕ⧋āύ⧋ āϞāĻžāχāĻ­ āϞ⧇āϜāĻžāϰ āϝ⧁āĻ•ā§āϤ āύ⧇āχ (Ensure no live laser is connected)

17. āĻŸā§‡āĻ¸ā§āϟ āϰāĻŋāĻĒā§‹āĻ°ā§āĻŸā§‡ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϤāĻĨā§āϝāϟāĻŋ āĻĨāĻžāϕ⧇ āύāĻž?
(Which information is usually NOT included in a test report?)
  • a) āϤāĻžāϰāĻŋāĻ– āĻ“ āϏāĻŽāϝāĻŧ (Date and time)
  • b) āĻŸā§‡āĻ¸ā§āϟ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āϝāĻ¨ā§āĻ¤ā§āϰ⧇āϰ āĻŦāĻŋāĻŦāϰāĻŖ (Instrument details)
  • c) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύ⧇āϰ āύāĻžāĻŽ (Technician’s name)
  • d) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύ⧇āϰ āĻŦā§āϝāĻ•ā§āϤāĻŋāĻ—āϤ āĻŦ⧇āϤāύ (Technician’s personal salary)
Answer (click to explore)

Correct: d) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύ⧇āϰ āĻŦā§āϝāĻ•ā§āϤāĻŋāĻ—āϤ āĻŦ⧇āϤāύ (Technician’s personal salary)

18. āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻ•āύ⧇āĻ•ā§āϟāϰ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āύāĻž āĻ•āϰāϞ⧇ āϕ⧀ āϏāĻŽāĻ¸ā§āϝāĻž āĻšāϤ⧇ āĻĒāĻžāϰ⧇?
(What problem may occur if visual connector inspection is not done?)
  • a) āϏāĻŦāϏāĻŽāϝāĻŧ āϞāϏ āĻ•āĻŽā§‡ āϝāĻžāĻŦ⧇ (Loss will always decrease)
  • b) āĻŽāϝāĻŧāϞāĻž/āĻ¸ā§āĻ•ā§āϰāĻžāĻšā§‡āϰ āϜāĻ¨ā§āϝ āϞāϏ āĻ“ āϰāĻŋāϟāĻžāĻ°ā§āύ āϞāϏ āĻ–āĻžāϰāĻžāĻĒ āĻšāϤ⧇ āĻĒāĻžāϰ⧇ (Dirt/scratches can worsen loss and return loss)
  • c) āϕ⧇āĻŦāϞ āϛ⧋āϟ āĻšāϝāĻŧ⧇ āϝāĻžāĻŦ⧇ (Cable will become shorter)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ āĻŦāĻĻāϞāĻžāĻŦ⧇ (Drum weight will change)
Answer (click to explore)

Correct: b) āĻŽāϝāĻŧāϞāĻž/āĻ¸ā§āĻ•ā§āϰāĻžāĻšā§‡āϰ āϜāĻ¨ā§āϝ āϞāϏ āĻ“ āϰāĻŋāϟāĻžāĻ°ā§āύ āϞāϏ āĻ–āĻžāϰāĻžāĻĒ āĻšāϤ⧇ āĻĒāĻžāϰ⧇ (Dirt/scratches can worsen loss and return loss)

19. “āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āϰāĻŋāϟāĻžāĻ°ā§āύ āϞāĻ¸â€ āϝāϤ āĻŦ⧇āĻļāĻŋ, āϞāĻŋāĻ™ā§āϕ⧇āϰ āϗ⧁āĻŖāĻŽāĻžāύ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧇āĻŽāύ?
(Generally, when optical return loss is higher, how is the link quality?)
  • a) āĻ–āĻžāϰāĻžāĻĒ (Worse)
  • b) āĻ­āĻžāϞ⧋ (Better)
  • c) āϕ⧋āύ⧋ āĻĒā§āϰāĻ­āĻžāĻŦ āύ⧇āχ (No effect)
  • d) āϏāĻŦāϏāĻŽāϝāĻŧ āĻŦā§āϝāĻ°ā§āĻĨ (Always failed)
Answer (click to explore)

Correct: b) āĻ­āĻžāϞ⧋ (Better)

20. OFC āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āĻļ⧇āώ⧇ āĻĒāϰāĻŦāĻ°ā§āϤ⧀ āϧāĻžāĻĒ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀?
(What is usually the next step after OFC testing?)
  • a) āĻŸā§‡āĻ¸ā§āϟ āĻĄā§‡āϟāĻž āĻĄāϕ⧁āĻŽā§‡āĻ¨ā§āϟ āĻ“ āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ•āϰāĻž (Document and store test data)
  • b) āϏāĻŦ āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāĻž (Cut all cables)
  • c) āĻĄā§āϰāĻžāĻŽ āĻĢ⧇āϞ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Throw away drum)
  • d) āύāϤ⧁āύ āĻ•āϰ⧇ āϰ⧁āϟ āĻĒā§āĻ˛ā§āϝāĻžāύ āĻ•āϰāĻž (Plan route again unnecessarily)
Answer (click to explore)

Correct: a) āĻŸā§‡āĻ¸ā§āϟ āĻĄā§‡āϟāĻž āĻĄāϕ⧁āĻŽā§‡āĻ¨ā§āϟ āĻ“ āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ•āϰāĻž (Document and store test data)

Unit 5: Health & Safety Measures and Networking – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. PPE-āĻāϰ āĻĒā§‚āĻ°ā§āĻŖāϰ⧂āĻĒ āϕ⧀?
(What is the full form of PPE?)
  • a) Personal Power Equipment
  • b) Personal Protective Equipment
  • c) Professional Protection Entity
  • d) Public Protective Element
Answer (click to explore)

Correct: b) Personal Protective Equipment

2. OFC āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āϏāĻžāχāĻŸā§‡ āϕ⧋āύ PPE āĻ…āĻŦāĻļā§āϝāχ āĻĒāϰāĻž āωāϚāĻŋāϤ?
(Which PPE must be worn at an OFC installation site?)
  • a) āĻ¸ā§āϝāĻžāĻ¨ā§āĻĄā§‡āϞ (Sandals)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻšā§‡āϞāĻŽā§‡āϟ (Safety helmet)
  • c) āϏāĻžāϧāĻžāϰāĻŖ āĻ•ā§āϝāĻžāĻĒ (Normal cap)
  • d) āĻ–āĻžāϞāĻŋ āĻĒāĻž (Barefoot)
Answer (click to explore)

Correct: b) āϏ⧇āĻĢāϟāĻŋ āĻšā§‡āϞāĻŽā§‡āϟ (Safety helmet)

3. āϞ⧇āϜāĻžāϰ āϞāĻžāχāϟ āĻĨ⧇āϕ⧇ āĻšā§‹āĻ– āϰāĻ•ā§āώāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧋āύ PPE āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(Which PPE should be used to protect eyes from laser light?)
  • a) āϏāĻžāϧāĻžāϰāĻŖ āϚāĻļāĻŽāĻž (Normal spectacles)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻ—āĻ—āϞāϏ/āϏ⧇āĻĢāϟāĻŋ āĻ—ā§āϞāĻžāϏ (Safety goggles/glasses)
  • c) āĻŽāĻžāĻ¸ā§āĻ• (Mask)
  • d) āχāϝāĻŧāĻžāϰāĻĒā§āϞāĻžāĻ— (Earplugs)
Answer (click to explore)

Correct: b) āϏ⧇āĻĢāϟāĻŋ āĻ—āĻ—āϞāϏ/āϏ⧇āĻĢāϟāĻŋ āĻ—ā§āϞāĻžāϏ (Safety goggles/glasses)

4. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāϟāĻž āϛ⧋āϟ āϟ⧁āĻ•āϰ⧋āϗ⧁āϞ⧋ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻžāĻĒāύāĻž āĻ•āϰāĻž āωāϚāĻŋāϤ?
(How should small cut pieces of fiber be managed?)
  • a) āĻŽāĻžāϟāĻŋāϤ⧇ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Leave on floor)
  • b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āĻ•āĻ¨ā§āĻŸā§‡āχāύāĻžāϰ⧇ āϏāĻ‚āĻ—ā§āϰāĻš āĻ“ āϏāĻ āĻŋāĻ•āĻ­āĻžāĻŦ⧇ āĻĄāĻŋāϏāĻĒā§‹āϜ āĻ•āϰāĻž (Collect in container and dispose properly)
  • c) āĻšāĻžāϤ⧇ āĻšā§‡āĻĒ⧇ āĻ­āĻžāĻ™āĻž (Crush by hand)
  • d) āĻĒāϕ⧇āĻŸā§‡ āϰāĻžāĻ–āĻž (Keep in pocket)
Answer (click to explore)

Correct: b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āĻ•āĻ¨ā§āĻŸā§‡āχāύāĻžāϰ⧇ āϏāĻ‚āĻ—ā§āϰāĻš āĻ“ āϏāĻ āĻŋāĻ•āĻ­āĻžāĻŦ⧇ āĻĄāĻŋāϏāĻĒā§‹āϜ āĻ•āϰāĻž (Collect in container and dispose properly)

5. āĻ˛ā§āϝāĻžāĻĄāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ⧇āϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ āύāĻŋāϰāĻžāĻĒāĻĻ āφāϚāϰāĻŖ?
(Which is safe behaviour when using a ladder?)
  • a) āϭ⧇āϜāĻž/āĻĒāĻŋāĻšā§āĻ›āĻŋāϞ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ āĻ˛ā§āϝāĻžāĻĄāĻžāϰ āĻŦāϏāĻžāύ⧋ (Place ladder on wet/slippery surface)
  • b) āĻĻ⧁āχāϜāύ āĻāĻ•āϏāĻžāĻĨ⧇ āĻ˛ā§āϝāĻžāĻĄāĻžāϰ⧇ āĻ“āĻ āĻž (Two people climbing together)
  • c) āϏāĻŽāϤāϞ āĻ“ āĻļāĻ•ā§āϤ āĻŽāĻžāϟāĻŋāϤ⧇ āĻ˛ā§āϝāĻžāĻĄāĻžāϰ āĻŦāϏāĻžāύ⧋ (Place ladder on firm, level ground)
  • d) āĻ˛ā§āϝāĻžāĻĄāĻžāϰāϕ⧇ āĻāĻ• āĻĒāĻžāϝāĻŧ⧇ āĻ­āϰ āĻ•āϰāĻž (Support ladder on one leg only)
Answer (click to explore)

Correct: c) āϏāĻŽāϤāϞ āĻ“ āĻļāĻ•ā§āϤ āĻŽāĻžāϟāĻŋāϤ⧇ āĻ˛ā§āϝāĻžāĻĄāĻžāϰ āĻŦāϏāĻžāύ⧋ (Place ladder on firm, level ground)

6. āϰāĻžāϏāĻžāϝāĻŧāύāĻŋāĻ• (āĻœā§‡āϞāĻŋ, āĻ•ā§āϞāĻŋāύāĻžāϰ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ) āĻŦā§āϝāĻŦāĻšāĻžāϰ⧇āϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ āϜāϰ⧁āϰāĻŋ?
(What is essential while handling chemicals like jelly, cleaners etc.?)
  • a) āϕ⧋āύ⧋ āĻ—ā§āϞāĻžāĻ­āϏ āύāĻž āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use no gloves)
  • b) āϰāĻžāϏāĻžāϝāĻŧāύāĻŋāĻ• āϏ⧇āĻĢāϟāĻŋ āύāĻŋāĻ°ā§āĻĻ⧇āĻļāĻŋāĻ•āĻž āĻ…āύ⧁āϏāϰāĻŖ āĻ•āϰāĻž (Follow chemical safety guidelines)
  • c) āĻšā§‹āϖ⧇āϰ āĻ•āĻžāϛ⧇ āύāĻŋāϝāĻŧ⧇ āĻ—āĻ¨ā§āϧ āύ⧇āϝāĻŧāĻž (Smell closely near eyes)
  • d) āĻ–āĻžāĻŦāĻžāϰ⧇āϰ āĻĒāĻžāĻļ⧇ āϰāĻžāĻ–āĻž (Keep near food)
Answer (click to explore)

Correct: b) āϰāĻžāϏāĻžāϝāĻŧāύāĻŋāĻ• āϏ⧇āĻĢāϟāĻŋ āύāĻŋāĻ°ā§āĻĻ⧇āĻļāĻŋāĻ•āĻž āĻ…āύ⧁āϏāϰāĻŖ āĻ•āϰāĻž (Follow chemical safety guidelines)

7. OFC āĻŸā§āϰ⧇āĻžā§āĻšā§‡ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ āĻā§āρāĻ•āĻŋ?
(What is a risk while working in an OFC trench?)
  • a) āĻĒāĻ°ā§āϝāĻžāĻĒā§āϤ āφāϞ⧋ (Adequate light)
  • b) āĻ—ā§āϝāĻžāϏ āϜāĻŽā§‡ āĻĨāĻžāĻ•āĻž āĻŦāĻž āϧāϏ (Gas accumulation or collapse)
  • c) āϏāĻŽāϤāϞ āϜāĻŽāĻŋ (Flat surface)
  • d) āϏ⧇āĻĢāϟāĻŋ āĻ•āύ āĻĨāĻžāĻ•āĻž (Presence of safety cones)
Answer (click to explore)

Correct: b) āĻ—ā§āϝāĻžāϏ āϜāĻŽā§‡ āĻĨāĻžāĻ•āĻž āĻŦāĻž āϧāϏ (Gas accumulation or collapse)

8. āϜāϰ⧁āϰāĻŋ āĻ…āĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ (āϝ⧇āĻŽāύ āχāϞ⧇āĻ•āĻŸā§āϰāĻŋāĻ• āĻļāĻ•) āĻĒā§āϰāĻĨāĻŽā§‡ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(In an emergency like electric shock, what should be done first?)
  • a) āϏāϰāĻžāϏāϰāĻŋ āĻŦā§āϝāĻ•ā§āϤāĻŋāϕ⧇ āĻŸā§‡āύ⧇ āϧāϰāĻž (Pull the person directly)
  • b) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏ⧋āĻ°ā§āϏ āĻŦāĻ¨ā§āϧ āĻ•āϰāĻž (Switch off the power source)
  • c) āĻ›āĻŦāĻŋ āϤ⧋āϞāĻž (Take photos)
  • d) āĻ•āĻžāϜ āϚāĻžāϞāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Continue work)
Answer (click to explore)

Correct: b) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏ⧋āĻ°ā§āϏ āĻŦāĻ¨ā§āϧ āĻ•āϰāĻž (Switch off the power source)

9. āĻĢāĻžāϝāĻŧāĻžāϰ āĻāĻ•ā§āϏāϟāĻŋāύāϗ⧁āχāĻļāĻžāϰ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āϏāĻ āĻŋāĻ•?
(Which statement about fire extinguishers is correct?)
  • a) āϏāĻŦ āϧāϰāύ⧇āϰ āφāϗ⧁āύ⧇ āĻāĻ•āχ āĻāĻ•ā§āϏāϟāĻŋāύāϗ⧁āχāĻļāĻžāϰ (Same extinguisher for all fires)
  • b) āϏāĻšāĻœā§‡ āĻĒ⧌āρāĻ›āĻžāύ⧋ āϝāĻžāϝāĻŧ āĻāĻŽāύ āĻ¸ā§āĻĨāĻžāύ⧇ āϰāĻžāĻ–āĻž āωāϚāĻŋāϤ (Should be kept easily accessible)
  • c) āĻ•āĻ–āύāχ āĻŸā§āϰ⧇āύāĻŋāĻ‚ āĻĻāϰāĻ•āĻžāϰ āύ⧇āχ (No training needed ever)
  • d) āϏāĻŦāϏāĻŽāϝāĻŧ āϞ⧁āĻ•āĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž āωāϚāĻŋāϤ (Should always be hidden)
Answer (click to explore)

Correct: b) āϏāĻšāĻœā§‡ āĻĒ⧌āρāĻ›āĻžāύ⧋ āϝāĻžāϝāĻŧ āĻāĻŽāύ āĻ¸ā§āĻĨāĻžāύ⧇ āϰāĻžāĻ–āĻž āωāϚāĻŋāϤ (Should be kept easily accessible)

10. “āĻĄāϕ⧁āĻŽā§‡āĻ¨ā§āĻŸā§‡āĻļāĻ¨â€ āϕ⧇āύ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ?
(Why is documentation important?)
  • a) āĻļ⧁āϧ⧁ āĻ•āĻžāĻ—āϜ āύāĻˇā§āϟ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (Only to waste paper)
  • b) āĻ•āĻžāĻœā§‡āϰ āϏāĻŦ āϤāĻĨā§āϝ āĻ“ āĻŸā§‡āĻ¸ā§āϟ āĻĢāϞāĻžāĻĢāϞ āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āϰ⧇āĻĢāĻžāϰ⧇āĻ¨ā§āϏ⧇āϰ āϜāĻ¨ā§āϝ āϰāĻžāĻ–āĻž (To keep work details and test results for future reference)
  • c) āĻŽāĻžāύ⧁āώ⧇āϰ āύāĻžāĻŽ āϞāĻŋāϖ⧇ āϰāĻžāĻ–āĻž (Only to write people’s names)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āϰāĻ‚ āύ⧋āϟ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (Only to note drum colour)
Answer (click to explore)

Correct: b) āĻ•āĻžāĻœā§‡āϰ āϏāĻŦ āϤāĻĨā§āϝ āĻ“ āĻŸā§‡āĻ¸ā§āϟ āĻĢāϞāĻžāĻĢāϞ āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āϰ⧇āĻĢāĻžāϰ⧇āĻ¨ā§āϏ⧇āϰ āϜāĻ¨ā§āϝ āϰāĻžāĻ–āĻž (To keep work details and test results for future reference)

11. “āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āĻ•â€ āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What is meant by a “network”?)
  • a) āĻāĻ•āĻ• āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻžāϰ (A single computer)
  • b) āĻāĻ•āĻžāϧāĻŋāĻ• āĻĄāĻŋāĻ­āĻžāχāϏ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āϏāĻ‚āϝ⧋āĻ— āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻž (A system connecting multiple devices)
  • c) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻŽā§‹āĻŦāĻžāχāϞ āĻĢā§‹āύ (Only mobile phones)
  • d) āĻļ⧁āϧ⧁ āχāĻ¨ā§āϟāĻžāϰāύ⧇āϟ āĻ•ā§āϝāĻžāĻŦāϞ (Only internet cable)
Answer (click to explore)

Correct: b) āĻāĻ•āĻžāϧāĻŋāĻ• āĻĄāĻŋāĻ­āĻžāχāϏ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āϏāĻ‚āϝ⧋āĻ— āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻž (A system connecting multiple devices)

12. āĻāĻ•āχ āĻŦāĻŋāĻ˛ā§āĻĄāĻŋāĻ‚-āĻāϰ āϭ⧇āϤāϰ⧇ āϛ⧋āϟ āĻĒāϰāĻŋāϏāϰ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āĻ•āϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(What is a network used in a small area inside the same building called?)
  • a) WAN
  • b) LAN
  • c) MAN
  • d) PAN-āύāĻž (None of these)
Answer (click to explore)

Correct: b) LAN

13. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻĄāĻŋāĻ­āĻžāχāϏāϗ⧁āϞ⧋āϕ⧇ āϏāĻ‚āϝ⧋āĻ— āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧋āύ āϝāĻ¨ā§āĻ¤ā§āϰ āĻŦ⧇āĻļāĻŋ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which device is commonly used to connect devices in a network?)
  • a) āĻĒā§āϰāĻŋāĻ¨ā§āϟāĻžāϰ (Printer)
  • b) āϏ⧁āχāϚ (Switch)
  • c) āĻ¸ā§āĻ•ā§āϝāĻžāύāĻžāϰ (Scanner)
  • d) āϕ⧀āĻŦā§‹āĻ°ā§āĻĄ (Keyboard)
Answer (click to explore)

Correct: b) āϏ⧁āχāϚ (Switch)

14. āĻĻ⧁āϟāĻŋ āĻ­āĻŋāĻ¨ā§āύ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āĻ•āϕ⧇ āϝ⧁āĻ•ā§āϤ āĻ•āϰāϤ⧇ āϕ⧋āύ āĻĄāĻŋāĻ­āĻžāχāϏ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which device is used to connect two different networks?)
  • a) āĻšāĻžāĻŦ (Hub)
  • b) āϰāĻžāωāϟāĻžāϰ (Router)
  • c) āĻŽāύāĻŋāϟāϰ (Monitor)
  • d) āĻŽāĻžāωāϏ (Mouse)
Answer (click to explore)

Correct: b) āϰāĻžāωāϟāĻžāϰ (Router)

15. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āĻ• āϕ⧇āĻŦāϞ āϟāĻžāύāĻžāϰ āϏāĻŽāϝāĻŧ āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be done for safety while pulling network cables?)
  • a) āϞ⧋āĻ•āϜāύāϕ⧇ āϏāϤāĻ°ā§āĻ• āύāĻž āĻ•āϰ⧇ āϕ⧇āĻŦāϞ āϟāĻžāύāĻž (Pull cable without warning people)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻ•āύ/āĻŸā§‡āĻĒ āĻĻāĻŋāϝāĻŧ⧇ āĻāϞāĻžāĻ•āĻž āĻŽāĻžāĻ°ā§āĻ• āĻ•āϰāĻž (Mark area with safety cones/tape)
  • c) āϰāĻžāĻ¸ā§āϤāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇ āϕ⧇āĻŦāϞ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Lay cable in middle of road)
  • d) āĻ…āĻ¨ā§āϧāĻ•āĻžāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻž (Work in dark)
Answer (click to explore)

Correct: b) āϏ⧇āĻĢāϟāĻŋ āĻ•āύ/āĻŸā§‡āĻĒ āĻĻāĻŋāϝāĻŧ⧇ āĻāϞāĻžāĻ•āĻž āĻŽāĻžāĻ°ā§āĻ• āĻ•āϰāĻž (Mark area with safety cones/tape)

16. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϟāĻĒā§‹āϞāϜāĻŋ āĻŦ⧇āĻļāĻŋ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which topology is commonly used in optical fiber networks?)
  • a) āĻŦāĻžāϏ (Bus)
  • b) āϰāĻŋāĻ‚ (Ring)
  • c) āĻ¸ā§āϟāĻžāϰ (Star)
  • d) āĻŽā§‡āĻļ (Mesh)
Answer (click to explore)

Possible correct (syllabus-level): c) āĻ¸ā§āϟāĻžāϰ (Star) – basic school-level assumption

17. āĻ•āĻžāĻœā§‡āϰ āϏāĻŽāϝāĻŧ “āĻāϰāĻ—ā§‹āύ⧋āĻŽāĻŋāĻ•ā§āĻ¸â€ āĻŽāĻžāύ⧇ āϕ⧀?
(What does “ergonomics” mean at the workplace?)
  • a) āĻļ⧁āϧ⧁āχ āϝāĻ¨ā§āĻ¤ā§āϰāĻĒāĻžāϤāĻŋāϰ āĻ—āϤāĻŋ (Only speed of machines)
  • b) āĻŽāĻžāύ⧁āώ⧇āϰ āφāϰāĻžāĻŽ āĻ“ āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻž āĻ…āύ⧁āϝāĻžāϝāĻŧā§€ āĻ•āĻžāĻœā§‡āϰ āĻĒāϰāĻŋāĻŦ⧇āĻļ āĻĄāĻŋāϜāĻžāχāύ āĻ•āϰāĻž (Designing workplace for human comfort and safety)
  • c) āĻļ⧁āϧ⧁ āĻ•āĻžāĻ—āϜāĻĒāĻ¤ā§āϰ⧇āϰ āĻ•āĻžāϜ (Only paperwork)
  • d) āĻļ⧁āϧ⧁āχ āχāĻ¨ā§āϟāĻžāϰāύ⧇āϟ āĻ¸ā§āĻĒāĻŋāĻĄ (Only internet speed)
Answer (click to explore)

Correct: b) āĻŽāĻžāύ⧁āώ⧇āϰ āφāϰāĻžāĻŽ āĻ“ āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻž āĻ…āύ⧁āϝāĻžāϝāĻŧā§€ āĻ•āĻžāĻœā§‡āϰ āĻĒāϰāĻŋāĻŦ⧇āĻļ āĻĄāĻŋāϜāĻžāχāύ āĻ•āϰāĻž (Designing workplace for human comfort and safety)

18. OFC āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ “āφāĻ¨ā§āĻĄāĻžāϰāĻ—ā§āϰāĻžāωāĻ¨ā§āĻĄ āϏ⧇āĻĢāϟāĻŋ” āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What is meant by “underground safety” during OFC installation?)
  • a) āĻļ⧁āϧ⧁ āĻŽāĻžāϟāĻŋ āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāĻž (Only digging soil)
  • b) āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āĻĒāĻžāχāĻĒāϞāĻžāχāύ, āϕ⧇āĻŦāϞ, āĻ—ā§āϝāĻžāϏ āϞāĻžāχāύ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āĻĨ⧇āϕ⧇ āύāĻŋāϰāĻžāĻĒāĻĻ āĻĻā§‚āϰāĻ¤ā§āĻŦ āĻŦāϜāĻžāϝāĻŧ āϰāĻžāĻ–āĻž (Maintaining safe distance from existing pipelines, cables, gas lines etc.)
  • c) āĻļ⧁āϧ⧁ āϕ⧇āĻŦāϞ āϞāĻŽā§āĻŦāĻž āĻ•āϰāĻž (Only lengthening cable)
  • d) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻ•āϰāĻž (Painting cable)
Answer (click to explore)

Correct: b) āĻŦāĻŋāĻĻā§āϝāĻŽāĻžāύ āĻĒāĻžāχāĻĒāϞāĻžāχāύ, āϕ⧇āĻŦāϞ, āĻ—ā§āϝāĻžāϏ āϞāĻžāχāύ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āĻĨ⧇āϕ⧇ āύāĻŋāϰāĻžāĻĒāĻĻ āĻĻā§‚āϰāĻ¤ā§āĻŦ āĻŦāϜāĻžāϝāĻŧ āϰāĻžāĻ–āĻž (Maintaining safe distance from existing utilities)

19. āĻ•āĻžāĻœā§‡āϰ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ “āϏ⧇āĻĢāϟāĻŋ āϏāĻžāχāĻ¨â€ āĻŦāĻž āϚāĻŋāĻšā§āύ⧇āϰ āĻ•āĻžāϜ āϕ⧀?
(What is the purpose of safety signs at the workplace?)
  • a) āĻļ⧁āϧ⧁āχ āĻĻ⧇āϝāĻŧāĻžāϞ āϏāĻžāϜāĻžāύ⧋ (Only to decorate walls)
  • b) āϏāĻŽā§āĻ­āĻžāĻŦā§āϝ āĻŦāĻŋāĻĒāĻĻ āĻ“ āύāĻŋāϝāĻŧāĻŽ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āϏāϤāĻ°ā§āĻ• āĻ•āϰāĻž (To warn about possible hazards and rules)
  • c) āĻ•āĻ°ā§āĻŽā§€āĻĻ⧇āϰ āύāĻžāĻŽ āĻĻ⧇āĻ–āĻžāύ⧋ (Show workers’ names)
  • d) āϕ⧇āĻŦāϞ āύāĻŽā§āĻŦāϰ āϞāĻŋāϖ⧇ āϰāĻžāĻ–āĻž (Write cable numbers)
Answer (click to explore)

Correct: b) āϏāĻŽā§āĻ­āĻžāĻŦā§āϝ āĻŦāĻŋāĻĒāĻĻ āĻ“ āύāĻŋāϝāĻŧāĻŽ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āϏāϤāĻ°ā§āĻ• āĻ•āϰāĻž (To warn about possible hazards and rules)

20. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻĄā§‡āϟāĻž āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻž āϰāĻ•ā§āώāĻžāϰ āϜāĻ¨ā§āϝ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻ­āĻžāϞ⧋ āĻ…āĻ­ā§āϝāĻžāϏ?
(Which is a good practice for maintaining data security in a network?)
  • a) āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āϏāĻŦāĻžāχāϕ⧇ āĻŦāϞ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Sharing password with everyone)
  • b) āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ“ āύāĻŋāϝāĻŧāĻŽāĻŋāϤ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻ•āϰāĻž (Using strong passwords and changing regularly)
  • c) āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āĻ•āĻžāĻ—āĻœā§‡ āϞāĻŋāϖ⧇ āĻŽāύāĻŋāϟāϰ⧇ āϞāĻžāĻ—āĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž (Writing password on paper and sticking to monitor)
  • d) āϕ⧋āύ⧋ āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āύāĻž āϰāĻžāĻ–āĻž (Keeping no password)
Answer (click to explore)

Correct: b) āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ“ āύāĻŋāϝāĻŧāĻŽāĻŋāϤ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻ•āϰāĻž (Using strong passwords and changing regularly)

Unit 1: Fiber Optic Communication and Route Inspection – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āĻŸā§‡āϞāĻŋāĻ•āĻŽ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϤāϰāĻ™ā§āĻ—āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻŦā§āϝāĻžāĻ¨ā§āĻĄ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which wavelength bands are commonly used in telecom optical fiber?)
  • a) 50 Hz, 60 Hz
  • b) 400 nm, 500 nm
  • c) 850 nm, 1310 nm, 1550 nm
  • d) 5 m, 10 m
2. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āĻŦāĻžāχāϰ⧇āϰ āϏ⧁āϰāĻ•ā§āώāĻžāĻŽā§‚āϞāĻ• āĻ¸ā§āϤāϰāϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(What is the outermost protective layer of an optical fiber called?)
  • a) āϕ⧋āϰ (Core)
  • b) āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚ (Cladding)
  • c) āĻœā§āϝāĻžāϕ⧇āϟ/āĻļā§€āĻĨ (Jacket/Sheath)
  • d) āĻŦāĻžāĻĢāĻžāϰ āϟāĻŋāωāĻŦ (Buffer tube)
3. āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧇āĻŦāϞ⧇ āϖ⧁āĻŦ āϛ⧋āϟ āϛ⧋āϟ āĻ­āĻžāρāĻœā§‡āϰ āĻ•āĻžāϰāϪ⧇ āϝ⧇ āĻ•ā§āώāϝāĻŧ āĻšāϝāĻŧ āϤāĻžāϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(What is the loss due to very small bends in the fiber called?)
  • a) āĻ•ā§āϰ⧋āĻŽā§āϝāĻžāϟāĻŋāĻ• āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ (Chromatic dispersion)
  • b) āĻŽā§āϝāĻžāĻ•ā§āϰ⧋-āĻŦ⧇āĻ¨ā§āĻĄ āϞāϏ (Macro-bend loss)
  • c) āĻŽāĻžāχāĻ•ā§āϰ⧋-āĻŦ⧇āĻ¨ā§āĻĄ āϞāϏ (Micro-bend loss)
  • d) āĻ•āĻžāĻĒāϞāĻŋāĻ‚ āϞāϏ (Coupling loss)
4. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻ…ā§āϝāĻžāĻŸā§‡āύ⧁āϝāĻŧ⧇āĻļāύāϕ⧇ āĻĒā§āϰāĻ­āĻžāĻŦāĻŋāϤ āĻ•āϰ⧇ āύāĻž?
(Which of the following does NOT affect attenuation in a fiber?)
  • a) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ (Length of fiber)
  • b) āĻ…āĻĒāĻžāϰ⧇āϟāĻŋāĻ‚ āϤāϰāĻ™ā§āĻ—āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ (Operating wavelength)
  • c) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž (Temperature)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻŦāĻžāχāϰ⧇āϰ āϰāĻ‚ (Outer colour of cable)
5. āϤāĻžāĻŽāĻžāϰ āϕ⧇āĻŦāϞ⧇āϰ āϤ⧁āϞāύāĻžāϝāĻŧ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻāĻ•āϟāĻŋ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ āϏ⧁āĻŦāĻŋāϧāĻž āϕ⧀?
(What is an important advantage of optical fiber over copper cable?)
  • a) āχāϞ⧇āĻ•ā§āĻŸā§āϰ⧋āĻŽā§āϝāĻžāĻ—āύ⧇āϟāĻŋāĻ• āύāϝāĻŧ⧇āĻœā§‡ āĻŦ⧇āĻļāĻŋ āĻĒā§āϰāĻ­āĻžāĻŦāĻŋāϤ āĻšāϝāĻŧ (More affected by electromagnetic noise)
  • b) āχāϞ⧇āĻ•ā§āĻŸā§āϰ⧋āĻŽā§āϝāĻžāĻ—āύ⧇āϟāĻŋāĻ• āχāĻ¨ā§āϟāĻžāϰāĻĢāĻŋāϝāĻŧāĻžāϰ⧇āĻ¨ā§āϏ⧇ āĻĒā§āϰāĻ­āĻžāĻŦāĻŋāϤ āĻšāϝāĻŧ āύāĻž āĻĒā§āϰāĻžāϝāĻŧ (Almost immune to EMI)
  • c) āĻ­ā§‹āĻ˛ā§āĻŸā§‡āϜ āĻŦāĻšāύ āĻ•āϰāϤ⧇ āĻĒāĻžāϰ⧇ (Can carry high voltage)
  • d) āϖ⧁āĻŦ āĻ­āĻžāϰ⧀ āĻšāϝāĻŧ (Very heavy)
6. “āϞāĻŋāĻ™ā§āĻ•â€ āĻŦāϞāϤ⧇ OFC āϏāĻŋāĻ¸ā§āĻŸā§‡āĻŽā§‡ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(In an OFC system, what is meant by a “link”?)
  • a) āĻļ⧁āϧ⧁āχ āĻŸā§āϰāĻžāĻ¨ā§āϏāĻŽāĻŋāϟāĻžāϰ (Only the transmitter)
  • b) āĻļ⧁āϧ⧁āχ āϰāĻŋāϏāĻŋāĻ­āĻžāϰ (Only the receiver)
  • c) āĻŸā§āϰāĻžāĻ¨ā§āϏāĻŽāĻŋāϟāĻžāϰ āĻĨ⧇āϕ⧇ āϰāĻŋāϏāĻŋāĻ­āĻžāϰ āĻĒāĻ°ā§āϝāĻ¨ā§āϤ āϏāĻŽā§āĻĒā§‚āĻ°ā§āĻŖ āĻĢāĻžāχāĻŦāĻžāϰ āĻĒāĻĨ (Complete fiber path from transmitter to receiver)
  • d) āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāĻĒā§āϞāĻžāχ (Only the power supply)
7. āĻĻā§€āĻ°ā§āϘāĻĻā§‚āϰāĻ¤ā§āĻŦ āĻŸā§‡āϞāĻŋāĻ•āĻŽ āϞāĻŋāĻ™ā§āϕ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϧāϰāύ⧇āϰ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which type of fiber is generally used in long-distance telecom links?)
  • a) āϏāĻŋāĻ™ā§āϗ⧇āϞ-āĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ (Single-mode fiber)
  • b) āĻŽāĻžāĻ˛ā§āϟāĻŋ-āĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ (Multi-mode fiber)
  • c) āĻĒā§āϞāĻžāĻ¸ā§āϟāĻŋāĻ• āĻĢāĻžāχāĻŦāĻžāϰ (Plastic fiber)
  • d) āĻ•āĻĒāĻžāϰ āĻĢāĻžāχāĻŦāĻžāϰ (Copper fiber)
8. āĻĻ⧁āχāϟāĻŋ āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϕ⧋āϰ⧇āϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻŖ āϏ⧂āϚāϕ⧇āϰ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ āϝāϤ āĻŦ⧇āĻļāĻŋ, āύāĻŋāωāĻŽā§‡āϰāĻŋāĻ•ā§āϝāĻžāϞ āĻ…ā§āϝāĻžāĻĒāĻžāϰāϚāĻžāϰ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧇āĻŽāύ āĻšāϝāĻŧ?
(If the refractive index difference between core and cladding is larger, how is the numerical aperture usually?)
  • a) āĻ•āĻŽ (Smaller)
  • b) āĻŦ⧇āĻļāĻŋ (Larger)
  • c) āĻ…āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ (Same)
  • d) āĻļā§‚āĻ¨ā§āϝ (Zero)
9. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϏāĻŋāĻ¸ā§āĻŸā§‡āĻŽā§‡ “āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāĻ¨â€ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What does “dispersion” mean in fiber optic systems?)
  • a) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻ•āĻŽā§‡ āϝāĻžāĻ“āϝāĻŧāĻž (Drop in power)
  • b) āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ⧇āϰ āĻ¸ā§āĻĒāĻŋāĻĄ āĻŦāĻžāĻĄāĻŧāĻž (Increase in signal speed)
  • c) āĻĒāĻžāϞāϏ āĻĒā§āϰāĻļāĻ¸ā§āϤ āĻšāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Spreading of optical pulse)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻ“āϜāύ āĻŦāĻžāĻĄāĻŧāĻž (Increase in cable weight)
10. āĻŦāĻŋāĻ­āĻŋāĻ¨ā§āύ āϤāϰāĻ™ā§āĻ—āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ⧇āϰ āφāϞ⧋āϰ āĻ­āĻŋāĻ¨ā§āύ āĻ­āĻŋāĻ¨ā§āύ āĻ—āϤāĻŋāϰ āĻ•āĻžāϰāϪ⧇ āϝ⧇ āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ āĻšāϝāĻŧ āϤāĻžāϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(Dispersion due to different wavelengths travelling at different speeds is called what?)
  • a) āĻŽā§‹āĻĄāĻžāϞ āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ (Modal dispersion)
  • b) āĻ•ā§āϰ⧋āĻŽā§āϝāĻžāϟāĻŋāĻ• āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ (Chromatic dispersion)
  • c) āĻĒā§‹āϞāĻžāϰāĻžāχāĻœā§‡āĻļāύ āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ (Polarization dispersion)
  • d) āĻŦ⧇āĻ¨ā§āĻĄ āĻĄāĻŋāϏāĻĒāĻžāϰāĻļāύ (Bend dispersion)
11. āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ “āϰāĻžāχāϟ-āĻ…āĻŦ-āĻ“āϝāĻŧ⧇ (Right-of-way)” āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(During route inspection, what is meant by “Right-of-way”?)
  • a) āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāĻžāϰ āĻ…āϧāĻŋāĻ•āĻžāϰ (Right to cut cables)
  • b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āĻĒāĻĨ āĻĻāĻŋāϝāĻŧ⧇ āϕ⧇āĻŦāϞ āύāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻžāϰ āĻ…āύ⧁āĻŽāϤāĻŋ (Permission to use a particular path for cable)
  • c) āϕ⧇āĻŦāϞ āĻŦāĻŋāĻ•ā§āϰāĻŋāϰ āĻ…āϧāĻŋāĻ•āĻžāϰ (Right to sell cable)
  • d) āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āϞāĻžāχāύ āĻŽāĻžāϞāĻŋāĻ•āĻžāύāĻž (Ownership of power lines)
12. āϰ⧁āϟ āĻŽāĻžāĻ°ā§āĻ•āĻžāϰ (Route marker) āĻŦāϏāĻžāύ⧋āϰ āĻŽā§‚āϞ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the main purpose of placing route markers?)
  • a) āϏāĻžāϜāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (For decoration)
  • b) āĻŽāĻžāϟāĻŋāϰ āύāĻŋāĻšā§‡ āϕ⧇āĻŦāϞ āϕ⧋āĻĨāĻžāϝāĻŧ āϗ⧇āϛ⧇ āϤāĻž āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰāĻž (To indicate underground cable path)
  • c) āϰāĻžāĻ¸ā§āϤāĻžāϰ āύāĻžāĻŽ āϞ⧇āĻ–āĻž (To write road names)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āĻŦā§‹āĻāĻžāύ⧋ (To show cable colour)
13. “āĻ¸ā§āĻŸā§‡āĻĒ-āχāĻ¨ā§āĻĄā§‡āĻ•ā§āĻ¸â€ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻĒā§āϰāϤāĻŋāϏāϰāĻŖ āϏ⧂āϚāĻ• āĻĒā§āϰ⧋āĻĢāĻžāχāϞ āϕ⧇āĻŽāύ āĻĨāĻžāϕ⧇?
(How is the refractive index profile in a step-index fiber?)
  • a) āϕ⧋āϰ āĻ“ āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚āϝāĻŧ⧇ āĻāĻ•āχ (Same in core and cladding)
  • b) āϕ⧋āϰ⧇ āϧ⧀āϰ⧇ āϧ⧀āϰ⧇ āĻ•āĻŽā§‡ (Gradually decreasing in core)
  • c) āϕ⧋āϰ⧇ āĻāĻ• āĻŽāĻžāύ, āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚āϝāĻŧ⧇ āĻšāĻ āĻžā§Ž āĻ•āĻŽ (Constant in core, sudden drop in cladding)
  • d) āĻāϞ⧋āĻŽā§‡āϞ⧋āĻ­āĻžāĻŦ⧇ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ (Randomly varying)
14. āĻĢāĻžāχāĻŦāĻžāϰ āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĒāϰāĻŋāĻŦ⧇āĻļāĻ—āϤ āĻā§āρāĻ•āĻŋ āĻšāĻŋāϏ⧇āĻŦ⧇ āĻŦāĻŋāĻŦ⧇āϚāĻŋāϤ āĻšāĻŦ⧇?
(Which of the following is considered an environmental risk during fiber route inspection?)
  • a) āĻ—āĻžāĻ›, āύāĻžāϞāĻž, āϜāϞāĻžāĻŦāĻĻā§āϧāϤāĻž (Trees, drains, water-logging)
  • b) āϕ⧇āĻŦāϞ āϰāĻ‚ (Cable colour)
  • c) āĻĄā§āϰāĻžāĻŽā§‡āϰ āύāĻŽā§āĻŦāϰ (Drum number)
  • d) āϕ⧋āϰ āϏāĻ‚āĻ–ā§āϝāĻž (Number of cores)
15. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϰ⧁āϟ āĻĒā§āĻ˛ā§āϝāĻžāύ⧇ “āϏāĻžāĻ°ā§āĻ­āĻŋāϏ āϞ⧁āĻĒ” āϕ⧀?
(What is a “service loop” in a fiber optic route plan?)
  • a) āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āĻŦ⧈āĻĻā§āϝ⧁āϤāĻŋāĻ• āϕ⧇āĻŦāϞ (Extra electrical cable)
  • b) āĻ­āĻŦāĻŋāĻˇā§āĻ¯ā§Ž āĻ•āĻžāĻœā§‡āϰ āϜāĻ¨ā§āϝ āϰāĻžāĻ–āĻž āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āĻĢāĻžāχāĻŦāĻžāϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ (Extra length of fiber kept for future work)
  • c) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āĻ•āĻžāĻ  (Extra wood of drum)
  • d) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāĻĒā§āϞāĻžāχ āϞ⧁āĻĒ (Power supply loop)
16. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϞāĻŋāĻ™ā§āϕ⧇ “āĻŦāĻžāĻœā§‡āĻŸâ€ āĻŦāϞāϤ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(In a fiber optic link, what does “budget” usually refer to?)
  • a) āĻĒā§āϰāĻ•āĻ˛ā§āĻĒ⧇āϰ āϟāĻžāĻ•āĻž (Project money)
  • b) āϕ⧇āĻŦāϞ āϕ⧇āύāĻžāϰ āĻ–āϰāϚ (Cost of buying cable)
  • c) āĻ…āύ⧁āĻŽā§‹āĻĻāĻŋāϤ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ āϞāϏ (Allowed maximum loss)
  • d) āĻļā§āϰāĻŽāĻŋāĻ•āĻĻ⧇āϰ āĻŽāϜ⧁āϰāĻŋ (Workers’ wages)
17. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϰ⧁āϟ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϧāϰāύ⧇āϰ āϜāĻžāϝāĻŧāĻ—āĻž āĻāĻĄāĻŧāĻŋāϝāĻŧ⧇ āĻĄāĻŋāϜāĻžāχāύ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Fiber optic routes are usually designed to avoid which type of places?)
  • a) āĻĒāĻžāĻŦāϞāĻŋāĻ• āĻ—āĻžāĻ°ā§āĻĄā§‡āύ (Public gardens)
  • b) āωāĻšā§āϚ āĻ­ā§‹āĻ˛ā§āĻŸā§‡āϜ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āϞāĻžāχāύ āĻ•ā§āϰāϏāĻŋāĻ‚ (High-voltage power line crossings)
  • c) āϰ⧇āϞāϞāĻžāχāύ, āύāĻĻā§€, āϏ⧇āϤ⧁ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ (Railway tracks, rivers, bridges etc.)
  • d) āϏāĻŽā§āĻĒā§‚āĻ°ā§āĻŖ āĻā§āρāĻ•āĻŋāĻĒā§‚āĻ°ā§āĻŖ āĻāĻŦāĻ‚ āĻ…āύ⧁āĻŽāϤāĻŋ āĻ•āĻ āĻŋāύ āĻāϞāĻžāĻ•āĻž (Highly risky and permission-difficult zones)
18. “āĻĢ⧁āϞ-āĻĄā§āĻĒā§āϞ⧇āĻ•ā§āĻ¸â€ āĻĢāĻžāχāĻŦāĻžāϰ āϞāĻŋāĻ™ā§āϕ⧇ āϕ⧀ āĻšāϝāĻŧ?
(What happens in a full-duplex fiber link?)
  • a) āĻāĻ•āĻĻāĻŋāϕ⧇āχ āϝ⧋āĻ—āĻžāϝ⧋āĻ— (Communication in one direction only)
  • b) āĻĻ⧁āχ āĻĻāĻŋāϕ⧇āχ āĻāĻ•āϏāĻžāĻĨ⧇ āϝ⧋āĻ—āĻžāϝ⧋āĻ— (Simultaneous communication in both directions)
  • c) āϕ⧋āύ⧋ āĻĄā§‡āϟāĻž āϝāĻžāϝāĻŧ āύāĻž (No data flows)
  • d) āĻļ⧁āϧ⧁ āĻ­āϝāĻŧ⧇āϏ āϝāĻžāϝāĻŧ (Only voice goes)
19. āĻĢāĻžāχāĻŦāĻžāϰ āĻ…āĻĒāϟāĻŋāĻ• āϏāĻŋāĻ¸ā§āĻŸā§‡āĻŽā§‡ “āϰāĻŋāĻĒāĻŋāϟāĻžāĻ°â€ āϕ⧀ āĻ•āĻžāϜ āĻ•āϰ⧇?
(What does a “repeater” do in a fiber optic system?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻ•āϰ⧇ (Changes cable colour)
  • b) āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞāϕ⧇ āĻĒ⧁āύāϰāĻžāϝāĻŧ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ āĻ•āϰ⧇ (Re-amplifies / regenerates the signal)
  • c) āϕ⧇āĻŦāϞ āĻ•āĻžāĻŸā§‡ (Cuts the cable)
  • d) āĻŸā§āϰ⧇āĻžā§āϚ āĻ–ā§‹āρāĻĄāĻŧ⧇ (Digs the trench)
20. āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āĻĨāĻžāϝāĻŧ āĻŦ⧇āĻļāĻŋ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Where is multimode fiber more commonly used?)
  • a) āĻĻā§€āĻ°ā§āϘ āϏāĻŽā§āĻĻā§āϰāϤāϞ āϕ⧇āĻŦāϞ āϞāĻŋāĻ™ā§āϕ⧇ (Very long submarine links)
  • b) āĻĻā§€āĻ°ā§āϘ āϜāĻžāϤ⧀āϝāĻŧ āĻŦā§āϝāĻžāĻ•āĻŦā§‹āύ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ (Long national backbone)
  • c) āĻ­āĻŦāύ⧇āϰ āϭ⧇āϤāϰ⧇āϰ āĻ¸ā§āĻŦāĻ˛ā§āĻĒ āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇āϰ āϞāĻŋāĻ™ā§āϕ⧇ (Short-distance links inside buildings)
  • d) āϕ⧋āύ⧋ āĻ•āĻžāĻœā§‡āχ āύāĻž (Not used anywhere)

Unit 2: Splicing Tools and Process – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āϝ⧇ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āφāĻ°ā§āĻ• āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āĻĻ⧁āϟāĻŋ āĻĢāĻžāχāĻŦāĻžāϰ āĻœā§‹āĻĄāĻŧāĻž āĻšāϝāĻŧ āϤāĻžāϕ⧇ āϕ⧀ āĻŦāϞāĻž āĻšāϝāĻŧ?
(What is the process called where an electric arc is used to join two fibers?)
  • a) āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Mechanical splice)
  • b) āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Fusion splice)
  • c) āĻ¸ā§āĻ•ā§āϰ⧁ āϜāϝāĻŧ⧇āĻ¨ā§āϟ (Screw joint)
  • d) āϏ⧋āĻ˛ā§āĻĄāĻžāϰ āϜāϝāĻŧ⧇āĻ¨ā§āϟ (Solder joint)
2. āĻ­āĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āϜāĻ¨ā§āϝ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āφāĻĻāĻ°ā§āĻļ āĻ•ā§āϞāĻŋāĻ­ āĻāĻ™ā§āϗ⧇āϞ āϕ⧇āĻŽāύ āĻšāĻ“āϝāĻŧāĻž āωāϚāĻŋāϤ?
(For a good splice, how should the cleave angle of the fiber end ideally be?)
  • a) āĻĒā§āϰāĻžāϝāĻŧ ā§Ļ°-āĻāϰ āĻ•āĻžāĻ›āĻžāĻ•āĻžāĻ›āĻŋ (Close to 0°)
  • b) ā§Ēā§Ģ° (45°)
  • c) ⧝ā§Ļ° (90°)
  • d) āϝāϤ āĻŦāĻĄāĻŧ āϤāϤ āĻ­āĻžāϞ⧋ (The larger the better)
3. āϕ⧋āϟāĻŋāĻ‚ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒ āĻ•āϰāĻžāϰ āφāϗ⧇ āĻĒā§āϰāĻĨāĻŽ āĻ•āĻžāϜ āϕ⧀?
(What is the first step before stripping the coating?)
  • a) āĻĢāĻžāχāĻŦāĻžāϰ āϭ⧇āϙ⧇ āĻĢ⧇āϞāĻž (Break the fiber)
  • b) āϏāĻ āĻŋāĻ• āϞ⧇āĻ¨ā§āĻĨ āĻŽāĻžāĻ°ā§āĻ• āĻ•āϰāĻž (Mark required length)
  • c) OTDR āϚāĻžāϞ⧁ āĻ•āϰāĻž (Turn on OTDR)
  • d) āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāĻ­ āĻ—āϰāĻŽ āĻ•āϰāĻž (Heat protection sleeve)
4. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āĻŽā§‡āĻļāĻŋāύ⧇āϰ āχāϞ⧇āĻ•āĻŸā§āϰ⧋āĻĄ āϏāĻŽāϝāĻŧāĻŽāϤ⧋ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āύāĻž āĻ•āϰāϞ⧇ āϕ⧀ āĻšāĻŦ⧇?
(What happens if fusion splicer electrodes are not cleaned in time?)
  • a) āĻ•āĻŋāϛ⧁āχ āĻšāϝāĻŧ āύāĻž (Nothing happens)
  • b) āφāĻ°ā§āĻ• āĻ…āĻ¸ā§āĻĨāĻŋāϰ āĻšāĻŦ⧇ āĻ“ āϞāϏ āĻŦāĻžāĻĄāĻŧāĻŦ⧇ (Arc becomes unstable and loss increases)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϰāĻ‚ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻšāϝāĻŧ (Fiber colour changes)
  • d) āϕ⧇āĻŦāϞ āĻ­ā§‹āĻ˛ā§āĻŸā§‡āϜ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧ (Cable voltage decreases)
5. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻĒāϰ āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāĻ­ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻĢāĻŋāϟ āĻ•āϰāĻž āĻšāϝāĻŧ?
(How is the protection sleeve usually fitted after fusion splice?)
  • a) āĻ āĻžāĻ¨ā§āĻĄāĻž āϰ⧇āϖ⧇ (Kept cold)
  • b) āĻšāĻŋāϟ āĻļā§āϰāĻŋāĻ‚āĻ• āĻ“āϭ⧇āύ⧇ āĻ—āϰāĻŽ āĻ•āϰ⧇ (Heated in a heat shrink oven)
  • c) āĻĒāĻžāύāĻŋāϤ⧇ āĻĄā§āĻŦāĻŋāϝāĻŧ⧇ (Dipped in water)
  • d) āĻšāĻžāϤ āĻĻāĻŋāϝāĻŧ⧇ āĻŸā§‡āύ⧇ (Pulled by hand)
6. “āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•ā§āϞ⧋āϜāĻžāĻ°â€ āϕ⧋āĻĨāĻžāϝāĻŧ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Where is a splice closure used?)
  • a) āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽā§‡āϰ āϭ⧇āϤāϰ⧇ (Inside cable drum)
  • b) āĻĢāĻžāχāĻŦāĻžāϰ āϜāϝāĻŧ⧇āĻ¨ā§āϟāϕ⧇ āφāĻŦāĻšāĻžāĻ“āϝāĻŧāĻž āĻ“ āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ•ā§āώāϤāĻŋ āĻĨ⧇āϕ⧇ āϰāĻ•ā§āώāĻž āĻ•āϰāϤ⧇ (To protect fiber joint from weather and mechanical damage)
  • c) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāĻĒā§āϞāĻžāχ āĻŦāĻ•ā§āϏ⧇ (In power box)
  • d) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻ•āϰāĻžāϰ āϘāϰ⧇ (In cable painting room)
7. āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻ āϕ⧋āύāϟāĻŋ āĻĒā§āϰāϝāĻŧā§‹āϜāύ?
(Which is required in mechanical splicing?)
  • a) āĻ—āϰāĻŽ āφāĻ°ā§āĻ• (Hot arc)
  • b) āĻĒā§āϰāĻŋāĻĢā§āϝāĻžāĻŦā§āϰāĻŋāϕ⧇āĻŸā§‡āĻĄ āĻ…ā§āϝāĻžāϞāĻžāχāύāĻŽā§‡āĻ¨ā§āϟ āĻ¸ā§āϞāĻŋāĻ­ (Prefabricated alignment sleeve)
  • c) āϏ⧋āĻ˛ā§āĻĄāĻžāϰ āĻ“ āφāϝāĻŧāϰāύ (Solder and iron)
  • d) āĻšā§āϝāĻžāĻŽāĻžāϰ (Hammer)
8. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻĒāϰāĻŋāĻŦ⧇āĻļ āϕ⧇āύ āϜāϰ⧁āϰāĻŋ?
(Why is a clean environment essential during splicing?)
  • a) āĻļ⧁āϧ⧁ āĻĻ⧇āĻ–āϤ⧇ āϏ⧁āĻ¨ā§āĻĻāϰ āϞāĻžāϗ⧇ (Only to look neat)
  • b) āϧ⧁āϞ⧋-āĻŽāϝāĻŧāϞāĻž āĻ•āĻŽ āĻĨāĻžāĻ•āϞ⧇ āϞāϏ āĻ•āĻŽ āĻšāϝāĻŧ (Less dust → less loss)
  • c) āϏāϰāĻžā§āϜāĻžāĻŽ āĻ•āĻŽ āϞāĻžāϗ⧇ (Fewer tools required)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āωāĻœā§āĻœā§āĻŦāϞ āĻĨāĻžāϕ⧇ (Cable colour remains bright)
9. āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āϟ⧁āϞāϟāĻŋ āϏāϰāĻžāϏāϰāĻŋ āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧋āϰ āĻĻ⧇āĻ–āϤ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϤ⧇ āĻĒāĻžāϰ⧇?
(Which tool can be used to directly view fiber core end face?)
  • a) āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ āĻŽāĻžāχāĻ•ā§āϰ⧋āĻ¸ā§āϕ⧋āĻĒ (Inspection microscope)
  • b) āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽāĻŋāϟāĻžāϰ (Multimeter)
  • c) āĻŸā§‡āĻ¸ā§āϟ āĻĒ⧇āύ (Test pen)
  • d) āĻ¸ā§āĻ•ā§āϰ⧁ āĻĄā§āϰāĻžāχāĻ­āĻžāϰ (Screwdriver)
10. “āĻŽāĻžāϏ āĻ¸ā§āĻĒā§āϞāĻžāχāĻ¸â€ āϕ⧋āĻĨāĻžāϝāĻŧ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Where is “mass splicing” used?)
  • a) āĻāĻ•āϏāĻžāĻĨ⧇ āĻ…āύ⧇āĻ• āϕ⧋āϰ/āϰāĻŋāĻŦāύ āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•āϰāϤ⧇ (To splice many cores/ribbon fibers at once)
  • b) āĻļ⧁āϧ⧁ āĻāĻ•āϟāĻŋ āϕ⧋āϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•āϰāϤ⧇ (To splice a single core)
  • c) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻ•āϰāϤ⧇ (To change cable colour)
  • d) āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ āĻ•āĻžāϟāϤ⧇ (To cut cable drum)
11. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϞāϏ āĻ•āĻŽ āϰāĻžāĻ–āϤ⧇ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ āϕ⧋āύāϟāĻŋ?
(What is most important to keep splice loss low?)
  • a) āϞāĻŽā§āĻŦāĻž āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāĻ­ (Longer sleeve)
  • b) āϕ⧋āϰ⧇āϰ āϏāĻ āĻŋāĻ• āĻ…ā§āϝāĻžāϞāĻžāχāύāĻŽā§‡āĻ¨ā§āϟ āĻ“ āĻ­āĻžāϞ āĻ•ā§āϞāĻŋāĻ­ (Proper core alignment and good cleave)
  • c) āĻŦ⧇āĻļāĻŋ āĻ—āϰāĻŽ āĻ•āϰāĻž (Overheating)
  • d) āϰāĻ‚ āĻ•āϰāĻž (Colouring)
12. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϞāĻ— āĻļāĻŋāϟ (Splicing log sheet) āϕ⧇āύ āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Why is a splicing log sheet maintained?)
  • a) āĻļ⧁āϧ⧁āχ āύāĻžāĻŽ āϞ⧇āĻ–āĻžāϰ āϜāĻ¨ā§āϝ (Only to write names)
  • b) āϕ⧋āύ āϕ⧋āϰ āϕ⧋āĻĨāĻžāϝāĻŧ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻšāϝāĻŧ⧇āϛ⧇ āĻ“ āϕ⧀ āϞāϏ āĻšāϝāĻŧ⧇āϛ⧇ āϤāĻž āϰ⧇āĻ•āĻ°ā§āĻĄ āϰāĻžāĻ–āϤ⧇ (To record which core is spliced where and what loss)
  • c) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āϞāĻŋāϖ⧇ āϰāĻžāĻ–āĻžāϰ āϜāĻ¨ā§āϝ (To note cable colours)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ āϞ⧇āĻ–āĻžāϰ āϜāĻ¨ā§āϝ (To note drum weight)
13. “āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻžāĻ°â€ āϚāĻžāϞ⧁ āĻ•āϰāĻžāϰ āφāϗ⧇ āϕ⧋āύāϟāĻŋ āĻ…āĻŦāĻļā§āϝāχ āĻšā§‡āĻ• āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What must be checked before switching on a fusion splicer?)
  • a) āĻĄā§āϰāĻžāĻŽā§‡āϰ āϰāĻ‚ (Drum colour)
  • b) āϏāĻ āĻŋāĻ• āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāĻĒā§āϞāĻžāχ āĻ“ āφāĻ°ā§āĻĨāĻŋāĻ‚ (Proper power supply and earthing)
  • c) āφāĻŦāĻšāĻžāĻ“āϝāĻŧāĻž āϕ⧇āĻŽāύ (Weather condition only)
  • d) āϞ⧋āĻ•āϏāĻ‚āĻ–ā§āϝāĻž (Number of people present)
14. āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻŋāĻ‚-āĻāϰ āĻĒāϰ āĻšāĻžāϤ⧇ āĻĨāĻžāĻ•āĻž āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧋āϟāĻŋāĻ‚ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻĢ⧇āϞ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž āωāϚāĻŋāϤ?
(How should stripped fiber coating pieces be disposed?)
  • a) āĻŽāĻžāϟāĻŋāϤ⧇ āϛ⧁āĻĄāĻŧ⧇ (Throw on floor)
  • b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āĻŦāĻ°ā§āĻœā§āϝ āĻ•āĻ¨ā§āĻŸā§‡āχāύāĻžāϰ⧇ (In a dedicated waste container)
  • c) āĻĒāϕ⧇āĻŸā§‡ āϰ⧇āϖ⧇ (Keep in pocket)
  • d) āύāĻĻā§€āϤ⧇ āĻĢ⧇āϞ⧇ (Throw in river)
15. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻŸā§āϰ⧇-āϤ⧇ āϕ⧇āĻŦāϞ āϏāĻžāϜāĻžāύ⧋āϰ āϏāĻŽāϝāĻŧ āϕ⧀ āĻŽāĻžāĻĨāĻžāϝāĻŧ āϰāĻžāĻ–āĻž āϜāϰ⧁āϰāĻŋ?
(What must be kept in mind while arranging fibers in a splice tray?)
  • a) āĻ…āĻĒā§āϰāϝāĻŧā§‹āϜāύ⧀āϝāĻŧ āφāρāĻ•āĻžāĻŦāĻžāρāĻ•āĻž āĻ•āϰ⧇ āϰāĻžāĻ–āĻž (Keep them highly twisted)
  • b) āĻŽāĻŋāύāĻŋāĻŽāĻžāĻŽ āĻŦ⧇āĻ¨ā§āĻĄ āϰ⧇āĻĄāĻŋāϝāĻŧāĻžāϏ āĻ āĻŋāĻ• āϰāĻžāĻ–āĻž (Maintain minimum bend radius)
  • c) āĻāĻ•āϏāĻžāĻĨ⧇ āϏāĻŦ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦ⧇āρāϧ⧇ āϰāĻžāĻ–āĻž (Tie all fibers tightly together)
  • d) āĻ…āĻ¨ā§āϧāĻ•āĻžāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻž (Work in dark)
16. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϟ⧁āϞāĻ•āĻŋāĻŸā§‡ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĨāĻžāĻ•āĻž āĻŦāĻžāĻ§ā§āϝāϤāĻžāĻŽā§‚āϞāĻ• āύāϝāĻŧ?
(Which of the following is NOT essential in a splicing toolkit?)
  • a) āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻžāϰ (Fusion splicer)
  • b) āĻ•ā§āϞāĻŋāĻ­āĻžāϰ (Cleaver)
  • c) āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ (Fiber stripper)
  • d) āĻ—ā§āϝāĻžāϏ āϚ⧁āϞāĻž (Gas stove)
17. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•ā§āϞāĻŋāύ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻ•āĻžāĻĒāĻĄāĻŧ āϕ⧇āĻŽāύ āĻšāĻ“āϝāĻŧāĻž āωāϚāĻŋāϤ?
(How should the cloth/tissue used for cleaning fiber be?)
  • a) āϞāĻŋāĻ¨ā§āϟ-āĻĢā§āϰāĻŋ (Lint-free)
  • b) āϖ⧁āĻŦ āĻŦ⧇āĻļāĻŋ āϞ⧋āĻŽāĻ“āϝāĻŧāĻžāϞāĻž (Very fluffy)
  • c) āϭ⧇āϜāĻž āĻ•āĻžāĻĒāĻĄāĻŧ (Wet cloth with water)
  • d) āϤ⧇āϞ⧇ āϭ⧇āϜāĻžāύ⧋ (Soaked in oil)
18. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϏāĻžāχāĻŸā§‡ āĻ•āĻžāϜ āĻļ⧇āώ āĻšāϞ⧇ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be done after finishing splicing work at a site?)
  • a) āϏāĻŦ āĻĢāĻžāχāĻŦāĻžāϰ āϟ⧁āĻ•āϰāĻž āĻ“ āφāĻŦāĻ°ā§āϜāύāĻž āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻ•āϰāĻž (Clean all fiber scraps and waste)
  • b) āϏāĻŦāĻ•āĻŋāϛ⧁ āĻĢ⧇āϞ⧇ āϰ⧇āϖ⧇ āϚāϞ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Leave everything as it is)
  • c) āĻļ⧁āϧ⧁ āĻŽā§‡āĻļāĻŋāύ āύāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Take only the machine)
  • d) āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāĻž (Cut cables)
19. āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻāĻ•āϟāĻŋ āĻ…āϏ⧁āĻŦāĻŋāϧāĻž āϕ⧀?
(What is one disadvantage of mechanical splicing?)
  • a) āϏāĻŦāϏāĻŽāϝāĻŧ āĻļā§‚āĻ¨ā§āϝ āϞāϏ (Always zero loss)
  • b) āϏāĻžāϧāĻžāϰāĻŖāϤ āϞāϏ āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āϤ⧁āϞāύāĻžāϝāĻŧ āĻŦ⧇āĻļāĻŋ (Loss usually higher than fusion splice)
  • c) āĻ•āĻ–āύāĻ“ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āϝāĻžāϝāĻŧ āύāĻž (Can never be used)
  • d) āϕ⧇āĻŦāϞ āϛ⧋āϟ āĻšāϝāĻŧ (Cable becomes shorter automatically)
20. āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻ “āϕ⧋āϰ āĻ…ā§āϝāĻžāϞāĻžāχāύāĻŽā§‡āĻ¨ā§āĻŸâ€ āĻāϰ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the purpose of “core alignment” in fiber splicing?)
  • a) āĻœā§āϝāĻžāϕ⧇āϟ āĻŽāĻŋāϞāĻžāύ⧋ (Align jackets)
  • b) āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚ āĻŽāĻŋāϞāĻžāύ⧋ (Align claddings)
  • c) āĻĻ⧁āχ āϕ⧋āϰāϕ⧇ āĻāĻ•āχ āϞāĻžāχāύ⧇ āĻāύ⧇ āϞāϏ āĻ•āĻŽāĻžāύ⧋ (Align two cores in same line to reduce loss)
  • d) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻŽāĻŋāϞāĻžāύ⧋ (Match cable colours)

Unit 3: Cable Laying and Installation – Multiple Choice Questions (MCCs) – 20 × 1 = 20

1. āĻ­ā§‚āĻ—āĻ°ā§āĻ­āĻ¸ā§āĻĨ OFC āĻŸā§āϰ⧇āĻžā§āĻšā§‡āϰ āϏāĻžāϧāĻžāϰāĻŖ āĻ—āĻ­ā§€āϰāϤāĻž āĻ•āϤ āĻšāĻ“āϝāĻŧāĻž āωāϚāĻŋāϤ (āϏāĻžāϧāĻžāϰāĻŖ āϏāĻĄāĻŧāϕ⧇)?
(What is the typical depth of an underground OFC trench on normal roads?)
  • a) ā§§ā§Ļâ€“ā§¨ā§Ļ āϏ⧇āĻŽāĻŋ (10–20 cm)
  • b) ā§Šā§Ļ–ā§Ēā§Ģ āϏ⧇āĻŽāĻŋ (30–45 cm)
  • c) āĻĒā§āϰāĻžāϝāĻŧ ⧝ā§Ļ āϏ⧇āĻŽāĻŋ āĻŦāĻž āϤāĻžāϰ āĻŦ⧇āĻļāĻŋ (Around 90 cm or more)
  • d) āĻ āĻŋāĻ• āĻŽāĻžāϟāĻŋāϰ āωāĻĒāϰ⧇āχ (Just on ground surface)
2. āϕ⧇āĻŦāϞ āĻŸā§āϰ⧇āĻžā§āĻšā§‡āϰ āύāĻŋāĻšā§‡ “āĻŦ⧇āĻĄāĻŋāĻ‚ āĻŽā§āϝāĻžāĻŸā§‡āϰāĻŋāϝāĻŧāĻžāĻ˛â€ āĻšāĻŋāϏ⧇āĻŦ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(What is usually used as bedding material at the bottom of a cable trench?)
  • a) āϧāĻžāϰāĻžāϞ⧋ āĻĒāĻžāĻĨāϰ (Sharp stones)
  • b) āύāϰāĻŽ āĻŦāĻžāϞāĻŋ/āĻĢāĻžāχāύ āĻ¸ā§āϝāĻžāĻ¨ā§āĻĄ (Soft/fine sand)
  • c) āĻ•āĻ‚āĻ•ā§āϰāĻŋāϟ āĻŦā§āϞāĻ• (Concrete blocks)
  • d) āϞ⧋āĻšāĻžāϰ āϟ⧁āĻ•āϰāĻž (Iron pieces)
3. āϕ⧇āĻŦāϞ āĻŦā§āϞ⧋āϝāĻŧāĻŋāĻ‚ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āϕ⧇āĻŦāϞ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻāĻ—ā§‹āϝāĻŧ?
(In cable blowing method, how does the cable move?)
  • a) āĻšāĻžāϤ⧇ āĻŸā§‡āύ⧇ (Pulled by hand)
  • b) āωāχāĻžā§āϚ āĻĻāĻŋāϝāĻŧ⧇ āĻŸā§‡āύ⧇ (Pulled by winch)
  • c) āĻŦāĻžāϤāĻžāϏ⧇āϰ āϚāĻžāĻĒ⧇āϰ āϏāĻžāĻšāĻžāĻ¯ā§āϝ⧇ āĻĄāĻžāĻ•ā§āĻŸā§‡āϰ āĻ­āĻŋāϤāϰ⧇ (Through duct using air pressure)
  • d) āĻĒāĻžāύāĻŋāϤ⧇ āĻ­āĻžāϏāĻŋāϝāĻŧ⧇ (Floating in water)
4. āĻāϝāĻŧāĻžāϰāĻŋāϝāĻŧāĻžāϞ OFC āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϧāϰāύ⧇āϰ āϕ⧇āĻŦāϞ⧇ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Aerial OFC is commonly done using which type of cable?)
  • a) āφāĻ°ā§āĻŽāĻžāĻ°ā§āĻĄ āφāĻ¨ā§āĻĄāĻžāϰāĻ—ā§āϰāĻžāωāĻ¨ā§āĻĄ āϕ⧇āĻŦāϞ (Armoured underground cable)
  • b) ADSS (All-Dielectric Self-Supporting) āϕ⧇āĻŦāϞ
  • c) āĻĒāĻžāύāĻŋāϰ āĻĒāĻžāχāĻĒ (Water pipe)
  • d) āĻ•āĻĒāĻžāϰ āϟ⧁āχāĻ¸ā§āĻŸā§‡āĻĄ āĻĒ⧇āϝāĻŧāĻžāϰ (Copper twisted pair)
5. āϜāϝāĻŧ⧇āĻ¨ā§āϟ āϞ⧋āϕ⧇āĻļāύ⧇ āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āϕ⧇āĻŦāϞ āϰ⧇āϖ⧇ āϝ⧇ āϞ⧁āĻĒ āϤ⧈āϰāĻŋ āĻ•āϰāĻž āĻšāϝāĻŧ āϤāĻž āϕ⧀ āύāĻžāĻŽā§‡ āĻĒāϰāĻŋāϚāĻŋāϤ?
(What is the loop of extra cable kept at joint locations called?)
  • a) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϞ⧁āĻĒ (Power loop)
  • b) āϏāĻžāĻ°ā§āĻ­āĻŋāϏ āϞ⧁āĻĒ (Service loop)
  • c) āĻ—ā§āϰāĻžāωāĻ¨ā§āĻĄ āϞ⧁āĻĒ (Ground loop)
  • d) āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ āϞ⧁āĻĒ (Signal loop)
6. āϕ⧇āĻŦāϞ āĻĄāĻžāĻ•ā§āϟ āĻŦā§āϞāĻ• āĻšāϝāĻŧ⧇ āϗ⧇āϞ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻ•āϰāĻž āĻšāϝāĻŧ?
(What is usually done if a cable duct is blocked?)
  • a) āĻĄāĻžāĻ•ā§āϟ āĻĢ⧇āϞ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Discard duct)
  • b) āĻĄāĻžāĻ•ā§āϟ āĻŦā§āϞ⧋āϝāĻŧāĻŋāĻ‚ āĻŦāĻž āϰāĻĄāĻŋāĻ‚ āĻ•āϰ⧇ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻ•āϰāĻž (Clean by blowing/rodding)
  • c) āϕ⧇āĻŦāϞ āĻœā§‹āϰ⧇ āĻŸā§‡āύ⧇ āύ⧇āĻ“āϝāĻŧāĻž (Pull cable very hard)
  • d) āĻŦā§āϞāĻ• āĻ…āĻ‚āĻļ⧇ āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāĻž (Cut cable at blocked part)
7. āϕ⧇āĻŦāϞ āϟāĻžāύāĻžāϰ āϏāĻŽāϝāĻŧ “āϞ⧁āĻŦā§āϰāĻŋāϕ⧇āĻ¨ā§āĻŸâ€ āϕ⧇āύ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Why is lubricant used while pulling cables?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻ•āϰāϤ⧇ (To change cable colour)
  • b) āϟāĻžāύāĻžāϰ āϘāĻ°ā§āώāĻŖ āĻ•āĻŽāĻžāϤ⧇ (To reduce pulling friction)
  • c) āϕ⧇āĻŦāϞ āĻ­āĻžāϰ⧀ āĻ•āϰāϤ⧇ (To make cable heavier)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻŦāĻžāĻĄāĻŧāĻžāϤ⧇ (To increase cable length)
8. āĻŽā§āϝāĻžāύāĻšā§‹āϞ/āĻšā§‡āĻŽā§āĻŦāĻžāϰ⧇āϰ āĻĸāĻžāĻ•āύāĻž āĻ–ā§‹āϞāĻžāϰ āϏāĻŽāϝāĻŧ āύāĻŋāϰāĻžāĻĒāĻ¤ā§āϤāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be done for safety when opening a manhole/chamber?)
  • a) āϕ⧋āύ⧋ āϏāϤāĻ°ā§āĻ•āϤāĻž āĻ›āĻžāĻĄāĻŧāĻžāχ āϖ⧁āϞ⧇ āϰāĻžāĻ–āĻž (Open without caution)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻŦā§āϝāĻžāϰāĻŋāϕ⧇āĻĄ āĻ“ āĻ“āϝāĻŧāĻžāĻ°ā§āύāĻŋāĻ‚ āĻŦā§‹āĻ°ā§āĻĄ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use safety barricades and warning boards)
  • c) āϰāĻžāĻ¸ā§āϤāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇ āϰ⧇āϖ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Leave cover in middle of road)
  • d) āĻļ⧁āϧ⧁ āϰāĻžāϤ⧇ āĻ•āĻžāϜ āĻ•āϰāĻž (Work only at night without signs)
9. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āϰ⧋āϞāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻžāϰ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the purpose of using rollers during cable laying?)
  • a) āϕ⧇āĻŦāϞ āĻ•āĻžāϟāĻžāϰ āϜāĻ¨ā§āϝ (To cut cable)
  • b) āϕ⧇āĻŦāϞāϕ⧇ āĻŽāĻžāϟāĻŋ āĻĨ⧇āϕ⧇ āϤ⧁āϞ⧇ āϘāĻ°ā§āώāĻŖ āĻ•āĻŽāĻžāύ⧋ āĻ“ āϰāĻ•ā§āώāĻž āĻ•āϰāĻž (To keep cable off ground, reduce friction and protect)
  • c) āĻĄā§āϰāĻžāĻŽ āĻ˜ā§‹āϰāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (To rotate drum)
  • d) āϰāĻ‚ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To paint cable)
10. “āĻ“āĻ­āĻžāϰāĻšā§‡āĻĄ āĻ•ā§āϞāĻŋāϝāĻŧāĻžāϰ⧇āĻ¨ā§āĻ¸â€ āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What is meant by “overhead clearance”?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āĻŦā§āϝāĻžāϏ (Cable diameter)
  • b) āϕ⧇āĻŦāϞ āĻĨ⧇āϕ⧇ āĻŽāĻžāϟāĻŋāϰ āĻĻā§‚āϰāĻ¤ā§āĻŦ (Distance of cable from ground)
  • c) āϕ⧇āĻŦāϞ āĻĨ⧇āϕ⧇ āĻĒāĻžāĻļ⧇āϰ āĻĻ⧇āĻ“āϝāĻŧāĻžāϞ⧇āϰ āĻĻā§‚āϰāĻ¤ā§āĻŦ (Distance from wall)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āωāĻšā§āϚāϤāĻž (Height of drum)
11. āύāĻĻā§€ āĻŦāĻž āύāĻžāϞāĻž āĻ•ā§āϰāϏ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ OFC āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀āĻ­āĻžāĻŦ⧇ āύāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž āĻšāϝāĻŧ?
(How is OFC usually routed while crossing rivers/drains?)
  • a) āĻĒāĻžāύāĻŋāϰ āωāĻĒāϰ āĻ­āĻžāϏāĻŋāϝāĻŧ⧇ (Floating on water)
  • b) āϏ⧇āϤ⧁āϰ āĻ¸ā§āĻŸā§āϰāĻžāĻ•āϚāĻžāϰ⧇āϰ āϏāĻžāĻĨ⧇ āĻŦāĻž āφāϞāĻžāĻĻāĻž āĻ•āĻ¨ā§āĻĄā§āχāĻŸā§‡ (Along bridge structure or separate conduit)
  • c) āϕ⧇āĻŦāϞ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Leaving cable loose)
  • d) āύ⧌āĻ•āĻžāϰ āϏāĻ™ā§āϗ⧇ āĻŦ⧇āρāϧ⧇ (Tied to boats)
12. “āχāύāĻĄā§‹āϰ āĻĄā§āϰāĻĒ āϕ⧇āĻŦāĻ˛â€ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āĻĨāĻžāϝāĻŧ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Where is an indoor drop cable generally used?)
  • a) āϏāĻŽā§āĻĻā§āϰāϤāϞ⧇ (Under sea)
  • b) āĻ­āĻŦāύ⧇āϰ āϭ⧇āϤāϰ āĻ—ā§āϰāĻžāĻšāϕ⧇āϰ āĻĒā§āϰāĻžāĻ™ā§āĻ—āϪ⧇ (Inside buildings till customer premises)
  • c) āĻšāĻžāχāĻ“āϝāĻŧ⧇ āĻ•ā§āϰāϏāĻŋāĻ‚āϝāĻŧ⧇ (On highways)
  • d) āϰ⧇āϞ āĻ•ā§āϰāϏāĻŋāĻ‚āϝāĻŧ⧇ (Railway crossings)
13. āϕ⧇āĻŦāϞ āϰ⧁āϟ āĻŽā§āϝāĻžāĻĒ⧇ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻ…āĻŦāĻļā§āϝāχ āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(Which of the following must be marked on the cable route map?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ (Cable colour)
  • b) āϜāϝāĻŧ⧇āĻ¨ā§āϟ āϞ⧋āϕ⧇āĻļāύ, āĻŽā§āϝāĻžāύāĻšā§‹āϞ, āĻ•ā§āϰāϏāĻŋāĻ‚ (Joint locations, manholes, crossings)
  • c) āĻļā§āϰāĻŽāĻŋāϕ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻž (Number of workers)
  • d) āĻ—āĻžāĻĄāĻŧāĻŋāϰ āύāĻŽā§āĻŦāϰ (Vehicle numbers)
14. “āφāĻ°ā§āĻŽāĻžāĻ°ā§āĻĄ āϕ⧇āĻŦāĻ˛â€ āĻāϰ āĻŽā§‚āϞ āωāĻĻā§āĻĻ⧇āĻļā§āϝ āϕ⧀?
(What is the main purpose of armored cable?)
  • a) āĻŦā§āϝāĻžāĻ¨ā§āĻĄāωāχāĻĨ āĻŦāĻžāĻĄāĻŧāĻžāύ⧋ (To increase bandwidth)
  • b) āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ• āϏ⧁āϰāĻ•ā§āώāĻž āĻĻ⧇āĻ“āϝāĻŧāĻž (To provide mechanical protection)
  • c) āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āϞāϏ āĻ•āĻŽāĻžāύ⧋ (To reduce optical loss)
  • d) āϰāĻ‚ āωāĻœā§āĻœā§āĻŦāϞ āĻ•āϰāĻž (To brighten colour)
15. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ “āĻĄā§‡āĻžā§āϜāĻžāϰ āĻŸā§‡āĻĒ” āĻŽāĻžāϟāĻŋāϰ āϕ⧋āύ āĻ…āĻ‚āĻļ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧ?
(At what level is danger/warning tape placed in the trench?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āĻāĻ•āĻĻāĻŽ āύāĻŋāĻšā§‡ (Just below cable)
  • b) āϕ⧇āĻŦāϞ⧇āϰ āωāĻĒāϰ āĻ•āĻŋāϛ⧁āϟāĻž āĻŽāĻžāϟāĻŋ āĻĻāĻŋāϝāĻŧ⧇ āĻ“āĻĒāϰ⧇ (Above cable after some backfill)
  • c) āĻāĻ•āĻĻāĻŽ āωāĻĒāϰāĻŋāĻ­āĻžāϗ⧇ (On ground surface only)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āϭ⧇āϤāϰ⧇ (Inside drum)
16. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ “āĻŦāĻžāρāĻ•â€ (bend) āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āĻĨāĻžāϝāĻŧ āĻ•āĻŽāĻžāύ⧋ āωāϚāĻŋāϤ?
(Where should bends in cable be minimized during laying?)
  • a) āϝ⧇āϕ⧋āύ⧋ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ (Anywhere)
  • b) āϕ⧇āĻŦāϞ āĻĒā§āϰāĻŦ⧇āĻļ āĻ“ āĻĒā§āϰāĻ¸ā§āĻĨāĻžāύ āĻ¸ā§āĻĨāĻžāύ⧇ (At entry and exit of ducts/manholes)
  • c) āĻļ⧁āϧ⧁ āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻĒāĻžāĻļ⧇ (Only near drum)
  • d) āĻļ⧁āϧ⧁ āϘāϰ⧇āϰ āϭ⧇āϤāϰ⧇ (Only indoors)
17. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚ āĻ•āĻžāĻœā§‡āϰ āĻļ⧇āώ⧇ āϕ⧋āύ āύāĻĨāĻŋ āφāĻĒāĻĄā§‡āϟ āĻ•āϰāĻž āϜāϰ⧁āϰāĻŋ?
(Which document must be updated after cable laying work?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ āϚāĻžāĻ°ā§āϟ (Cable colour chart)
  • b) “āĻ…ā§āϝāĻžāϜ-āĻŦāĻŋāĻ˛ā§āĻŸâ€ āĻĄā§āϰāϝāĻŧāĻŋāĻ‚/āϰ⧁āϟ āĻŽā§āϝāĻžāĻĒ (As-built drawings/route map)
  • c) āĻ•āĻ°ā§āĻŽāϚāĻžāϰ⧀āϰ āĻŦ⧇āϤāύ āϰ⧇āϜāĻŋāĻ¸ā§āϟāĻžāϰ (Salary register)
  • d) āĻ•ā§āϝāĻžāĻ¨ā§āϟāĻŋāύ āĻŽā§‡āύ⧁ (Canteen menu)
18. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽā§‡ āϞ⧇āĻ–āĻž “āĻ•āĻžāϟāĻŋāĻ‚ āϞ⧇āĻ¨ā§āĻĨ āĻŽāĻžāĻ°ā§āĻ•āĻŋāĻ‚â€ āϕ⧀ āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ⧇?
(What does the “cutting length marking” on a cable drum indicate?)
  • a) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻŦā§āϝāĻžāϏ (Drum diameter)
  • b) āϕ⧇āĻŦāϞ⧇āϰ āĻŽā§‹āϟ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ (Total cable length)
  • c) āϕ⧋āĻĨāĻžāϝāĻŧ āϕ⧇āĻŦāϞ āĻ•āĻžāϟāϞ⧇ āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āϞ⧇āĻ¨ā§āĻĨ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāĻŦ⧇ (Where to cut to get specific lengths)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āϕ⧋āĻĄ (Cable colour code)
19. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚ āϚāϞāĻžāĻ•āĻžāϞ⧀āύ āϝāĻĻāĻŋ āĻšāĻ āĻžā§Ž āĻŦ⧃āĻˇā§āϟāĻŋ āĻļ⧁āϰ⧁ āĻšāϝāĻŧ, āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be done if heavy rain starts during cable laying?)
  • a) āĻŸā§āϰ⧇āĻžā§āĻšā§‡ āϜāϞ āϜāĻŽāϤ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Allow water to fill trench)
  • b) āĻ•āĻžāϜ āĻŦāĻ¨ā§āϧ āĻ•āϰ⧇ āϕ⧇āĻŦāϞ āĻ“ āϏāϰāĻžā§āϜāĻžāĻŽ āϏ⧁āϰāĻ•ā§āώāĻŋāϤ āϰāĻžāĻ–āĻž (Stop work and secure cables and tools)
  • c) āĻœā§‹āϰ⧇ āĻ•āĻžāϜ āϚāĻžāϞāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Continue work faster)
  • d) āĻĄā§āϰāĻžāĻŽ āĻĒāĻžāύāĻŋāϤ⧇ āĻĢ⧇āϞ⧇ āϰāĻžāĻ–āĻž (Leave drum in water)
20. āϰāĻžāĻ¸ā§āϤāĻžāϰ āĻĒāĻžāĻļ⧇ OFC āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ “āĻŸā§āϰāĻžāĻĢāĻŋāĻ• āĻŽā§āϝāĻžāύ⧇āϜāĻŽā§‡āĻ¨ā§āĻŸâ€ āϕ⧇āύ āϜāϰ⧁āϰāĻŋ?
(Why is traffic management important during roadside OFC installation?)
  • a) āĻļ⧁āϧ⧁ āϝāĻžāύāϜāϟ āĻŦāĻžāĻĄāĻŧāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (Only to create traffic jam)
  • b) āĻĻ⧁āĻ°ā§āϘāϟāύāĻž āĻāĻĄāĻŧāĻŋāϝāĻŧ⧇ āύāĻŋāϰāĻžāĻĒāĻĻāĻ­āĻžāĻŦ⧇ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To avoid accidents and work safely)
  • c) āĻ—āĻžāĻĄāĻŧāĻŋāϰ āĻ—āϤāĻŋ āĻŦāĻžāĻĄāĻŧāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (To increase vehicle speed)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ āĻŽāĻžāĻĒāĻžāϰ āϜāĻ¨ā§āϝ (To measure drum weight)

Unit 4: Testing Installation of OFC – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ āĻŸā§‡āĻ¸ā§āϟ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āĻĻ⧁āχ āϝāĻ¨ā§āĻ¤ā§āϰ āĻĻāĻŋāϝāĻŧ⧇ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Insertion loss test is usually performed using which two instruments?)
  • a) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ āĻ“ āϏ⧋āĻ°ā§āϏ (Power meter and light source)
  • b) āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽāĻŋāϟāĻžāϰ āĻ“ āĻŦā§āϝāĻžāϟāĻžāϰāĻŋ (Multimeter and battery)
  • c) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻŽāĻŋāϟāĻžāϰ āĻ“ āĻĢā§āϝāĻžāύ (Thermometer and fan)
  • d) āĻ¸ā§āĻ•ā§āϰ⧁ āĻĄā§āϰāĻžāχāĻ­āĻžāϰ āĻ“ āĻšāĻžāϤ⧁āĻĄāĻŧāĻŋ (Screwdriver and hammer)
2. OTDR āĻŸā§‡āĻ¸ā§āĻŸā§‡ “āϞāĻžā§āϚ āĻĢāĻžāχāĻŦāĻžāĻ°â€ āϕ⧇āύ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Why is a launch fiber used in OTDR testing?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āĻĻ⧇āĻ–āĻžāϰ āϜāĻ¨ā§āϝ (To see cable colour)
  • b) āĻļ⧁āϰ⧁āϰ āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āĻ“ āύāĻŋāĻ•āϟāĻŦāĻ°ā§āϤ⧀ āχāϭ⧇āĻ¨ā§āϟ āĻ āĻŋāĻ•āĻŽāϤ⧋ āĻŽāĻžāĻĒāĻžāϰ āϜāĻ¨ā§āϝ (To properly measure near-end connector and events)
  • c) āϕ⧇āĻŦāϞ āϛ⧋āϟ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To shorten cable)
  • d) OTDR āĻ āĻžāĻ¨ā§āĻĄāĻž āϰāĻžāĻ–āĻžāϰ āϜāĻ¨ā§āϝ (To keep OTDR cool)
3. “āϰāĻŋāϏāĻŋāĻ­ āĻĢāĻžāχāĻŦāĻžāĻ°â€ OTDR-āĻ āϕ⧋āĻĨāĻžāϝāĻŧ āϝ⧁āĻ•ā§āϤ āĻĨāĻžāϕ⧇?
(Where is the receive fiber connected in an OTDR test?)
  • a) OTDR-āĻāϰ āφāϗ⧇ (Before OTDR)
  • b) āϞāĻŋāĻ™ā§āϕ⧇āϰ āĻĻā§‚āϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ (At the far end of the link)
  • c) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ•āĻžāϛ⧇ (Near drum)
  • d) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāĻĒā§āϞāĻžāχ-āϤ⧇ (To power supply)
4. OTDR āĻāϰ “āĻĄāĻžāχāύāĻžāĻŽāĻŋāĻ• āϰ⧇āĻžā§āĻœâ€ āϝāϤ āĻŦ⧇āĻļāĻŋ, āϤāϤ —
(Higher the dynamic range of an OTDR, the —)
  • a) āĻ•āĻŽ āĻĻā§‚āϰāĻ¤ā§āĻŦ āĻĻ⧇āĻ–āĻž āϝāĻžāϝāĻŧ (Shorter distance can be tested)
  • b) āĻŦ⧇āĻļāĻŋ āĻĻā§‚āϰāĻ¤ā§āĻŦ āĻ“ āϛ⧋āϟ āχāϭ⧇āĻ¨ā§āϟ āĻĻ⧇āĻ–āĻž āϝāĻžāϝāĻŧ (Longer distance and smaller events can be seen)
  • c) āϕ⧇āĻŦāϞ āϰāĻ‚ āωāĻœā§āĻœā§āĻŦāϞ āĻšāϝāĻŧ (Cable colour brighter)
  • d) āϕ⧇āĻŦāϞ āĻŦā§āϝāĻžāϏ āĻŦāĻžāĻĄāĻŧ⧇ (Cable diameter increases)
5. āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ⧇ -dBm āĻāϰ āĻŽāĻžāύ āϝāϤ āĻ•āĻŽ (āϝ⧇āĻŽāύ -ā§Šā§Ļ āĻĨ⧇āϕ⧇ -ā§§ā§Ģ), āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(In dBm, a less negative value (e.g., -30 to -15 dBm) indicates what about power?)
  • a) āĻ•āĻŽ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Lower power)
  • b) āĻŦ⧇āĻļāĻŋ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Higher power)
  • c) āĻļā§‚āĻ¨ā§āϝ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Zero power)
  • d) āĻ•āĻŋāϛ⧁ āĻŦā§‹āĻāĻžāϝāĻŧ āύāĻž (Means nothing)
6. “āϰ⧇āĻĢāĻžāϰ⧇āĻ¨ā§āϏ āϏ⧇āϟ āĻ•āϰāĻžâ€ āĻŦāϞāϤ⧇ āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ āĻŸā§‡āĻ¸ā§āĻŸā§‡ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What does “setting reference” mean in insertion loss testing?)
  • a) āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āϛ⧋āϟ āĻ•āϰāĻž (Cutting cable)
  • b) āĻĒāϰāĻŋāϚāĻŋāϤ āĻ­āĻžāϞ⧋ āϞāĻŋāĻ™ā§āĻ•āϕ⧇ ā§Ļ dB āϧāϰ⧇ āύ⧇āĻ“āϝāĻŧāĻž (Setting a known good link as 0 dB)
  • c) OTDR āĻŦāĻ¨ā§āϧ āĻ•āϰāĻž (Switching off OTDR)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āϞāĻŋāϖ⧇ āϰāĻžāĻ–āĻž (Writing cable colour)
7. āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āϝāĻĻāĻŋ āύ⧋āĻ‚āϰāĻž āĻĨāĻžāϕ⧇, āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻĒā§āϰāĻ­āĻžāĻŦ āĻĒāĻĄāĻŧ⧇?
(If fiber connectors are dirty during testing, what is the usual effect?)
  • a) āϞāϏ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧ (Loss decreases)
  • b) āϞāϏ āĻ“ āϰāĻŋāϟāĻžāĻ°ā§āύ āϞāϏ āĻ–āĻžāϰāĻžāĻĒ āĻšāϝāĻŧ (Loss and return loss worsen)
  • c) āϕ⧋āύ⧋ āĻĒā§āϰāĻ­āĻžāĻŦ āύ⧇āχ (No effect)
  • d) āϕ⧇āĻŦāϞ āϞāĻŽā§āĻŦāĻž āĻšāϝāĻŧ (Cable length increases)
8. OTDR āĻŸā§āϰ⧇āϏ⧇ āϛ⧋āϟ āĻĒāĻŋāĻ• āĻŦāĻž āĻ¸ā§āĻĒāĻžāχāĻ• āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ⧇?
(What do small peaks/spikes in an OTDR trace usually indicate?)
  • a) āĻļ⧁āϧ⧁āχ āϕ⧇āĻŦāϞ āϰāĻ‚ (Only cable colour change)
  • b) āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āĻŦāĻž āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āχāϭ⧇āĻ¨ā§āϟ (Connector or splice events)
  • c) āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ (Temperature change)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ (Drum weight)
9. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻ…ā§āϝāĻžāĻ•āϏ⧇āĻĒā§āĻŸā§‡āĻ¨ā§āϏ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āϏāĻŽāϝāĻŧ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻĻ⧇āĻ–āĻž āĻšāϝāĻŧ āύāĻž?
(Which of the following is NOT checked during installation acceptance testing?)
  • a) āϞāĻŋāĻ™ā§āĻ• āϞāϏ (Link loss)
  • b) OTDR āχāϭ⧇āĻ¨ā§āϟ āĻ“ āĻŦā§āϰ⧇āĻ• (OTDR events and breaks)
  • c) āϕ⧇āĻŦāϞ āϰ⧁āϟ āĻĄāϕ⧁āĻŽā§‡āĻ¨ā§āĻŸā§‡āĻļāύ (Cable route documentation)
  • d) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύ⧇āϰ āĻŦ⧇āϤāύ āĻ¸ā§āϞāĻŋāĻĒ (Technician’s salary slip)
10. āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ āĻŸā§‡āĻ¸ā§āĻŸā§‡ “āϏ⧋āĻ°ā§āĻ¸â€ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϧāϰāύ⧇āϰ āφāϞ⧋ āĻĻ⧇āϝāĻŧ?
(In insertion loss testing, what does the “source” usually provide?)
  • a) āϏāĻžāĻĻāĻž āφāϞ⧋ (White light)
  • b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āϤāϰāĻ™ā§āĻ—āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ⧇āϰ āϞ⧇āϜāĻžāϰ/āĻāϞāχāĻĄāĻŋ āφāϞ⧋ (Laser/LED at specific wavelength)
  • c) āĻļ⧁āϧ⧁ āϤāĻžāĻĒ (Only heat)
  • d) āĻļāĻŦā§āĻĻ (Sound)
11. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻ¨ā§āϟāĻŋāύāĻŋāωāϟāĻŋ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āϜāĻ¨ā§āϝ āϏāĻšāϜ āĻāĻ•āϟāĻŋ āωāĻĒāĻžāϝāĻŧ āϕ⧀?
(What is a simple way to test fiber continuity?)
  • a) āĻŸā§‡āĻ¸ā§āϟ āĻĒ⧇āύ āĻŦāĻž VFL āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āĻāĻ• āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āφāϞ⧋ āĻĻāĻŋāϝāĻŧ⧇ āĻ…āĻ¨ā§āϝ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āĻĻ⧇āĻ–āĻž (Using test pen/VFL and checking light on other end)
  • b) Multimeter āĻĻāĻŋāϝāĻŧ⧇ āĻ­ā§‹āĻ˛ā§āĻŸā§‡āϜ āĻŽāĻžāĻĒāĻž (Measure voltage with multimeter)
  • c) āϕ⧇āĻŦāϞ āϕ⧇āĻŸā§‡ āĻĻ⧇āĻ–āĻž (Cut cable)
  • d) āϕ⧇āĻŦāϞ āĻāĻžāρāĻ•āĻžāύ⧋ (Shake cable)
12. OTDR-āĻ “āĻŦāĻžāχāĻĄāĻžāχāϰ⧇āĻ•āĻļāύāĻžāϞ āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚â€ āϕ⧇āύ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Why is bidirectional testing done with OTDR?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻŽāĻŋāϞāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (To match cable colours)
  • b) āĻĻ⧁āχ āĻĻāĻŋāĻ• āĻĨ⧇āϕ⧇ āĻŽāĻžāĻĒ āύāĻŋāϝāĻŧ⧇ āĻ—āĻĄāĻŧ āϞāϏ āĻŦ⧇āϰ āĻ•āϰāϤ⧇ (To measure from both ends and average loss)
  • c) āϕ⧇āĻŦāϞ āϛ⧋āϟ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To shorten cable)
  • d) āϕ⧇āĻŦāϞ āĻ—āϰāĻŽ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To heat cable)
13. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϕ⧋āύ āχāωāύāĻŋāϟ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ?
(Which unit is commonly used with an optical power meter?)
  • a) āĻ­ā§‹āĻ˛ā§āϟ (Volt)
  • b) āĻ…ā§āϝāĻžāĻŽā§āĻĒāĻŋāϝāĻŧāĻžāϰ (Ampere)
  • c) dBm
  • d) āĻšāĻžāĻ°ā§āϟāϜ (Hertz)
14. āĻĢāĻžāχāĻŦāĻžāϰ āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚-āĻāϰ āφāϗ⧇ “āĻ“āϝāĻŧāĻžāĻ°ā§āĻŽ āφāĻĒ āϟāĻžāχāĻŽâ€ āϕ⧇āύ āϰāĻžāĻ–āĻž āĻšāϝāĻŧ?
(Why is warm-up time given before fiber testing instruments are used?)
  • a) āĻĄā§āϰāĻžāĻŽ āĻ—āϰāĻŽ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To heat the drum)
  • b) āϝāĻ¨ā§āĻ¤ā§āϰ⧇āϰ āϰāĻŋāĻĄāĻŋāĻ‚ āĻ¸ā§āĻĨāĻŋāϤāĻŋāĻļā§€āϞ āĻ•āϰāϤ⧇ (To stabilize instrument readings)
  • c) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύāĻĻ⧇āϰ āĻŦāĻŋāĻļā§āϰāĻžāĻŽā§‡āϰ āϜāĻ¨ā§āϝ (For technician rest)
  • d) āϕ⧇āĻŦāϞ āϞāĻŽā§āĻŦāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To lengthen cable)
15. āĻŸā§‡āĻ¸ā§āϟ āϰāĻŋāĻĒā§‹āĻ°ā§āĻŸā§‡ “āĻĒāĻžāϏ/āĻĢ⧇āĻ˛â€ āϏāĻŋāĻĻā§āϧāĻžāĻ¨ā§āϤ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀ āĻĻ⧇āϖ⧇ āύ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧ?
(Pass/Fail in a test report is usually based on what?)
  • a) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻ āĻŋāĻ• āφāϛ⧇ āĻ•āĻŋ āύāĻž (Whether cable colour is correct)
  • b) āϞāϏ āĻ“ āϰāĻŋāϟāĻžāĻ°ā§āύ āϞāϏ āύāĻŋāĻ°ā§āϧāĻžāϰāĻŋāϤ āϏ⧀āĻŽāĻžāϰ āĻŽāĻ§ā§āϝ⧇ āφāϛ⧇ āĻ•āĻŋ āύāĻž (Whether loss & return loss meet specified limits)
  • c) OTDR āĻŽā§‡āĻ• āϕ⧋āύ āϕ⧋āĻŽā§āĻĒāĻžāύāĻŋ (OTDR brand)
  • d) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύ⧇āϰ āύāĻžāĻŽ (Technician’s name)
16. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āϏāĻŽāϝāĻŧ “āϞ⧇āĻŦ⧇āϞāĻŋāĻ‚â€ āϕ⧇āύ āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ?
(Why is labeling important during installation testing?)
  • a) āϕ⧇āĻŦāϞāϕ⧇ āϏāĻžāϜāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (Just for decoration)
  • b) āϕ⧋āύ āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧋āύ āϕ⧋āϰ/āĻĒā§‹āĻ°ā§āĻŸā§‡ āϝāĻžāĻšā§āϛ⧇ āϤāĻž āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āĻšā§‡āύāĻžāϰ āϜāĻ¨ā§āϝ (To identify which fiber goes to which core/port later)
  • c) āĻŸā§‡āĻ¸ā§āϟ āĻĄā§‡āϟāĻž āύāĻˇā§āϟ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To destroy test data)
  • d) āĻĄā§āϰāĻžāĻŽā§‡āϰ āĻ“āϜāύ āϞ⧇āĻ–āĻžāϰ āϜāĻ¨ā§āϝ (To note drum weight)
17. āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āϚāϞāĻžāĻ•āĻžāϞ⧀āύ āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧇āĻŦāϞ⧇āϰ āĻ“āĻĒāϰ āϕ⧇āω āĻšāĻžāρāϟāϞ⧇ āϕ⧀ āϏāĻŽāĻ¸ā§āϝāĻž āĻšāϤ⧇ āĻĒāĻžāϰ⧇?
(What problem may occur if someone steps on fiber cable during testing?)
  • a) āϕ⧋āύ⧋ āϏāĻŽāĻ¸ā§āϝāĻž āύ⧇āχ (No problem)
  • b) āĻŦ⧇āĻ¨ā§āĻĄ āϞāϏ āĻŦāĻžāĻĄāĻŧāϤ⧇ āĻĒāĻžāϰ⧇ (Bend loss may increase)
  • c) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ āĻŦāĻ¨ā§āϧ āĻšāϝāĻŧ⧇ āϝāĻžāϝāĻŧ (Power meter switches off)
  • d) OTDR āĻŽā§āϛ⧇ āϝāĻžāϝāĻŧ (OTDR is erased)
18. āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āĻļ⧇āώ⧇ āĻĄā§‡āϟāĻž āϏ⧇āĻ­ āύāĻž āĻ•āϰāϞ⧇ āϕ⧀ āĻā§āρāĻ•āĻŋ āĻĨāĻžāϕ⧇?
(What is the risk if test data is not saved after testing?)
  • a) āϕ⧋āύ⧋ āĻā§āρāĻ•āĻŋ āύ⧇āχ (No risk)
  • b) āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āĻ¤ā§āϰ⧁āϟāĻŋ āĻ…āύ⧁āϏāĻ¨ā§āϧāĻžāύ⧇ āϏāĻŽāĻ¸ā§āϝāĻž āĻšāĻŦ⧇ (Trouble in future fault-finding)
  • c) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āĻŦāĻĻāϞ⧇ āϝāĻžāĻŦ⧇ (Cable colour will change)
  • d) āϕ⧇āĻŦāϞ āϞāĻŽā§āĻŦāĻž āĻšāĻŦ⧇ (Cable will lengthen)
19. “āĻŽā§āϝāĻžāĻ•ā§āϰ⧋ āĻŦ⧇āĻ¨ā§āĻĄâ€ āχāϭ⧇āĻ¨ā§āϟ OTDR-āĻ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧇āĻŽāύ āĻĻ⧇āĻ–āĻž āϝāĻžāϝāĻŧ?
(How does a macro-bend event usually appear on OTDR?)
  • a) āĻšāĻ āĻžā§Ž āĻŦāĻĄāĻŧ āĻĒāĻŋāĻ• (Big upward peak)
  • b) āϧ⧀āϰ⧇ āϧ⧀āϰ⧇ āϞāϏ āĻŦāĻžāĻĄāĻŧāĻž āĻŦāĻž āĻāĻ•āϟāĻŋ āϛ⧋āϟ āĻĄā§āϰāĻĒ (Gradual loss increase/small drop)
  • c) āĻāϕ⧇āĻŦāĻžāϰ⧇āχ āĻ•āĻŋāϛ⧁ āύāĻž (No change)
  • d) āϏāϰāϞ āϏāĻŽāϤāϞ āϞāĻžāχāύ (Flat straight line)
20. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚-āĻ “āϏ⧇āĻĢāϟāĻŋ āĻ—āĻžāχāĻĄāϞāĻžāχāĻ¨â€ āĻŽāĻžāύāĻž āϕ⧇āύ āϜāϰ⧁āϰāĻŋ?
(Why is following safety guidelines important during installation testing?)
  • a) āĻļ⧁āϧ⧁ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ āϏ⧁āĻ¨ā§āĻĻāϰ āĻ•āϰāϤ⧇ (Only to make report nice)
  • b) āĻŸā§‡āĻ•āύāĻŋāĻļāĻŋāϝāĻŧāĻžāύ āĻ“ āϝāĻ¨ā§āĻ¤ā§āϰāĻĒāĻžāϤāĻŋāϰ āϏ⧁āϰāĻ•ā§āώāĻžāϰ āϜāĻ¨ā§āϝ (For safety of technicians and equipment)
  • c) āĻ•āĻžāϜ āϧ⧀āϰ⧇ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To slow down work)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āĻ āĻŋāĻ• āϰāĻžāĻ–āĻžāϰ āϜāĻ¨ā§āϝ (To keep cable colour right)

Unit 5: Health & Safety Measures and Networking – Multiple Choice Questions (MCQs) – 20 × 1 = 20

1. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāϟāĻžāϰ āϏāĻŽāϝāĻŧ āĻšā§‹āĻ– āϰāĻ•ā§āώāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧀ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be used to protect eyes while cutting fibers?)
  • a) āϏāĻžāϧāĻžāϰāĻŖ āϚāĻļāĻŽāĻž (Normal spectacles)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻ—āĻ—āϞāϏ (Safety goggles)
  • c) āϕ⧋āύ⧋ āĻ•āĻŋāϛ⧁ āύāϝāĻŧ (Nothing)
  • d) āĻšā§āϝāĻžāϟ (Hat)
2. āĻŽāĻžāϟāĻŋāϰ āϭ⧇āϤāϰ⧇ āĻŸā§āϰ⧇āĻžā§āĻšā§‡ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϕ⧋āύāϟāĻŋ āĻŦāĻŋāĻļ⧇āώ āĻā§āρāĻ•āĻŋ?
(What is a special risk while working inside trenches?)
  • a) āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āφāϞ⧋ (Excess light)
  • b) āϧāϏ, āĻ—ā§āϝāĻžāϏ āϜāĻŽāĻž āĻ“ āĻ…āĻ•ā§āϏāĻŋāĻœā§‡āύ⧇āϰ āϘāĻžāϟāϤāĻŋ (Collapse, gas accumulation, lack of oxygen)
  • c) āĻ āĻžāĻ¨ā§āĻĄāĻž āĻŦāĻžāϤāĻžāϏ (Cold air)
  • d) āĻļ⧁āϧ⧁ āĻļāĻŦā§āĻĻ (Only noise)
3. “āϞāĻ•-āφāωāϟ āĻŸā§āϝāĻžāĻ—-āφāωāϟ (LOTO)” āĻĒāĻĻā§āϧāϤāĻŋ āϕ⧋āύ āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻšāϝāĻŧ?
(In which case is Lock-Out Tag-Out (LOTO) used?)
  • a) āĻ–āĻžāĻŦāĻžāϰ āĻĒāϰāĻŋāĻŦ⧇āĻļāύ (Serving food)
  • b) āĻŦ⧈āĻĻā§āϝ⧁āϤāĻŋāĻ•/āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ• āϝāĻ¨ā§āĻ¤ā§āϰ āĻŽā§‡āχāύāĻŸā§‡āύ⧇āĻ¨ā§āϏ⧇āϰ āφāϗ⧇ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āύāĻŋāĻļā§āϚāĻŋāϤāĻ­āĻžāĻŦ⧇ āĻŦāĻ¨ā§āϧ āϰāĻžāĻ–āϤ⧇ (To ensure power is off before electrical/mechanical maintenance)
  • c) āĻĄā§āϰāĻžāĻŽ āĻ˜ā§‹āϰāĻžāύ⧋āϰ āφāϗ⧇ (Before rolling drum)
  • d) āϕ⧇āĻŦāϞ āϰāĻ‚ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ (While painting cable)
4. āĻĢāĻžāχāĻŦāĻžāϰ āϟ⧁āĻ•āϰ⧋ āĻ—āĻžāϝāĻŧ⧇ āĻĸ⧁āϕ⧇ āϗ⧇āϞ⧇ āĻĒā§āϰāĻĨāĻŽā§‡ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(If a small fiber piece gets stuck in the skin, what should be done first?)
  • a) āĻœā§‹āϰ⧇ āϘāώāĻž (Rub hard)
  • b) āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻĒāĻžāύāĻŋ āĻĻāĻŋāϝāĻŧ⧇ āϧ⧁āϝāĻŧ⧇ āĻĒā§āϰāϝāĻŧā§‹āϜāύ āĻšāϞ⧇ āϚāĻŋāĻ•āĻŋā§ŽāϏāϕ⧇āϰ āĻ•āĻžāϛ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Rinse with clean water and visit doctor if needed)
  • c) āωāĻĒ⧇āĻ•ā§āώāĻž āĻ•āϰāĻž (Ignore it)
  • d) āĻĒāϕ⧇āĻŸā§‡ āϰāĻžāĻ–āĻž (Keep it in pocket)
5. āωāĻšā§āϚ āĻ¸ā§āĻĨāĻžāύ⧇ (āĻĒā§‹āϞ/āϟāĻžāĻ“āϝāĻŧāĻžāϰ) āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϕ⧋āύ PPE āĻŦāĻŋāĻļ⧇āώāĻ­āĻžāĻŦ⧇ āϜāϰ⧁āϰāĻŋ?
(Which PPE is especially important when working at heights like poles/towers?)
  • a) āϏ⧇āĻĢāϟāĻŋ āĻ—ā§āϞāĻžāĻ­āϏ (Safety gloves)
  • b) āϏ⧇āĻĢāϟāĻŋ āĻšāĻžāϰāύ⧇āϏ (Safety harness)
  • c) āĻ•āϟāύ āĻ•ā§āϝāĻžāĻĒ (Cotton cap)
  • d) āĻ¸ā§āϝāĻžāĻ¨ā§āĻĄā§‡āϞ (Sandals)
6. āϰāĻžāĻ¸ā§āϤāĻžāϰ āϧāĻžāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ “āϏ⧇āĻĢāϟāĻŋ āĻ•āĻ¨â€ āĻ“ “āĻŦā§āϝāĻžāϰāĻŋāϕ⧇āĻĄâ€ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻžāϰ āĻŽā§‚āϞ āĻ•āĻžāϰāĻŖ āϕ⧀?
(Why are safety cones and barricades used while working near roads?)
  • a) āϰāĻžāĻ¸ā§āϤāĻž āϏāĻžāϜāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ (To decorate roads)
  • b) āĻĒāĻĨāϚāĻžāϰ⧀ āĻ“ āϝāĻžāύāĻŦāĻžāĻšāύāϕ⧇ āϏāϤāĻ°ā§āĻ• āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To warn pedestrians and vehicles)
  • c) āϕ⧇āĻŦāϞ āϞāĻŽā§āĻŦāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To increase cable length)
  • d) āĻĄā§āϰāĻžāĻŽ āĻ—āϰāĻŽ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To heat drum)
7. āϕ⧋āύ⧋ āϕ⧇āĻŽāĻŋāĻ•ā§āϝāĻžāϞ āĻšā§‹āϖ⧇ āϗ⧇āϞ⧇ āĻĒā§āϰāĻĨāĻŽ āĻĒāĻĻāĻ•ā§āώ⧇āĻĒ āϕ⧀?
(If a chemical splashes into the eyes, what is the first step?)
  • a) āĻšā§‹āĻ– āĻŦāĻ¨ā§āϧ āĻ•āϰ⧇ āϘ⧁āĻŽāĻŋāϝāĻŧ⧇ āĻĒāĻĄāĻŧāĻž (Close eyes and sleep)
  • b) āĻĒā§āϰāϚ⧁āϰ āĻĒāϰāĻŋāĻŽāĻžāĻŖ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻĒāĻžāύāĻŋ āĻĻāĻŋāϝāĻŧ⧇ āϧ⧁āϝāĻŧ⧇ āĻĢ⧇āϞāĻž (Flush with plenty of clean water)
  • c) āĻ•āĻžāĻĒāĻĄāĻŧ āĻĻāĻŋāϝāĻŧ⧇ āϘāώāĻž (Rub with cloth)
  • d) āĻ•āĻŋāϛ⧁āχ āύāĻž āĻ•āϰāĻž (Do nothing)
8. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ “IP Address” āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What does an IP Address represent in a network?)
  • a) āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻžāϰ⧇āϰ āĻ“āϜāύ (Weight of computer)
  • b) āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻĄāĻŋāĻ­āĻžāχāϏ⧇āϰ āĻ…āύāĻ¨ā§āϝ āĻ āĻŋāĻ•āĻžāύāĻž (Unique address of a device on network)
  • c) āĻŽāύāĻŋāϟāϰ⧇āϰ āϏāĻžāχāϜ (Monitor size)
  • d) āϕ⧇āĻŦāϞ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ (Cable length)
9. “āĻĢāĻžāϝāĻŧāĻžāϰāĻ“āϝāĻŧāĻžāĻ˛â€ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āϕ⧀ āĻ•āĻžāϜ āĻ•āϰ⧇?
(What does a firewall do in a network?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āϞāϏ āĻ•āĻŽāĻžāϝāĻŧ (Reduces cable loss)
  • b) āĻ…āύāύ⧁āĻŽā§‹āĻĻāĻŋāϤ āĻ…ā§āϝāĻžāĻ•ā§āϏ⧇āϏ āĻĢāĻŋāĻ˛ā§āϟāĻžāϰ āĻ•āϰ⧇ (Filters unauthorized access)
  • c) āϕ⧇āĻŦāϞ āϞāĻŽā§āĻŦāĻž āĻ•āϰ⧇ (Makes cable longer)
  • d) āĻŽāύāĻŋāϟāϰ⧇āϰ āωāĻœā§āĻœā§āĻŦāϞāϤāĻž āĻŦāĻžāĻĄāĻŧāĻžāϝāĻŧ (Increases monitor brightness)
10. āĻŦāĻžāĻĄāĻŧāĻŋāϰ āϭ⧇āϤāϰ āĻ“āϝāĻŧā§āϝāĻžāϰāϞ⧇āϏ āχāĻ¨ā§āϟāĻžāϰāύ⧇āϟ āĻĻ⧇āĻ“āϝāĻŧāĻžāϰ āϜāĻ¨ā§āϝ āϕ⧋āύ āĻĄāĻŋāĻ­āĻžāχāϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Which device is used to provide wireless internet inside homes?)
  • a) āϏ⧁āχāϚ (Switch)
  • b) āϰāĻžāωāϟāĻžāϰ/āĻ“āϝāĻŧāĻžāχ-āĻĢāĻžāχ āϰāĻžāωāϟāĻžāϰ (Router/Wi-Fi router)
  • c) āĻĒā§āϰāĻŋāĻ¨ā§āϟāĻžāϰ (Printer)
  • d) āĻ¸ā§āĻ•ā§āϝāĻžāύāĻžāϰ (Scanner)
11. “LAN āϕ⧇āĻŦāĻ˛â€ āĻŦāϞāϤ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧋āύ āϧāϰāύ⧇āϰ āϕ⧇āĻŦāϞ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What type of cable is generally meant by “LAN cable”?)
  • a) āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ (Optical fiber)
  • b) āϟ⧁āχāĻ¸ā§āĻŸā§‡āĻĄ āĻĒ⧇āϝāĻŧāĻžāϰ (UTP/STP) āϕ⧇āĻŦāϞ (Twisted pair UTP/STP cable)
  • c) āϕ⧋āĻāĻ•ā§āϏāĻŋāϝāĻŧāĻžāϞ āϕ⧇āĻŦāϞ (Coaxial cable)
  • d) āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϕ⧇āĻŦāϞ (Power cable)
12. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ “āϏāĻžāĻ°ā§āĻ­āĻžāĻ°â€ āĻāϰ āĻ•āĻžāϜ āϕ⧀?
(What is the role of a server in a network?)
  • a) āĻļ⧁āϧ⧁ āĻĒā§āϰāĻŋāĻ¨ā§āϟ āĻ•āϰāĻž (Only printing)
  • b) āĻ•ā§āϞāĻžāϝāĻŧ⧇āĻ¨ā§āϟāĻĻ⧇āϰ āϜāĻ¨ā§āϝ āĻĄā§‡āϟāĻž āĻ“ āϏāĻžāĻ°ā§āĻ­āĻŋāϏ āĻĒā§āϰāĻĻāĻžāύ āĻ•āϰāĻž (Providing data and services to clients)
  • c) āĻļ⧁āϧ⧁ āϕ⧇āĻŦāϞ⧇āϰ āϞāϏ āĻŽāĻžāĻĒāĻž (Only measuring cable loss)
  • d) āĻļ⧁āϧ⧁ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āϏāϰāĻŦāϰāĻžāĻš āĻ•āϰāĻž (Only supplying power)
13. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻĄā§‡āϟāĻž āϏāĻŋāĻ•āĻŋāωāϰāĻŋāϟāĻŋ āĻŦāĻžāĻĄāĻŧāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻāĻ•āϟāĻŋ āĻ­āĻžāϞ⧋ āĻĒāĻĻā§āϧāϤāĻŋ?
(Which is a good method to improve data security in a network?)
  • a) āĻāĻ•āχ āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āϏāĻŦ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use same password everywhere)
  • b) āĻ…ā§āϝāĻžāĻ¨ā§āϟāĻŋāĻ­āĻžāχāϰāĻžāϏ āĻ“ āφāĻĒāĻĄā§‡āĻŸā§‡āĻĄ āϏāĻĢāϟāĻ“āϝāĻŧā§āϝāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use antivirus and updated software)
  • c) āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āϞāĻŋāϖ⧇ āĻŽāύāĻŋāϟāϰ⧇ āϞāĻžāĻ—āĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž (Stick password on monitor)
  • d) āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āύāĻž āϰāĻžāĻ–āĻž (Keep no password)
14. āĻ…āĻĢāĻŋāϏ⧇ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āĻ• āĻ•ā§āϝāĻžāĻŦāϞāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻŸā§āϰāĻŋāĻĒ āĻšā§āϝāĻžāϜāĻžāĻ°ā§āĻĄ āĻ•āĻŽāĻžāϤ⧇ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(What should be done to reduce trip hazards during office cabling?)
  • a) āĻŽā§‡āĻā§‡āϤ⧇ āĻĸāĻŋāϞ⧇ āϕ⧇āĻŦāϞ āϰ⧇āϖ⧇ āĻĻ⧇āĻ“āϝāĻŧāĻž (Leave loose cables on floor)
  • b) āϕ⧇āĻŦāϞ āĻŸā§āϰ⧇/āĻĄāĻžāĻ•ā§āϟ āĻ“ āĻ•āĻ­āĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž (Use cable trays/ducts and covers)
  • c) āϕ⧇āĻŦāϞ āĻšā§‡āϝāĻŧāĻžāϰ⧇āϰ āύāĻŋāϚ āĻĻāĻŋāϝāĻŧ⧇ āύ⧇āĻ“āϝāĻŧāĻž (Route under chairs loosely)
  • d) āĻĻāϰāϜāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇ āϕ⧇āĻŦāϞ āϰāĻžāĻ–āĻž (Keep cable in doorway)
15. “MSDS” (Material Safety Data Sheet) āϕ⧀?
(What is an MSDS – Material Safety Data Sheet?)
  • a) āĻĒā§āϰāĻœā§‡āĻ•ā§āϟ āĻ–āϰāĻšā§‡āϰ āϤāĻžāϞāĻŋāĻ•āĻž (Project cost sheet)
  • b) āϕ⧇āĻŽāĻŋāĻ•ā§āϝāĻžāϞ⧇āϰ āϏ⧇āĻĢāϟāĻŋ āĻ“ āĻšā§āϝāĻžāĻ¨ā§āĻĄāϞāĻŋāĻ‚ āϤāĻĨā§āϝ⧇āϰ āύāĻĨāĻŋ (Document with chemical safety and handling info)
  • c) āϕ⧇āĻŦāϞ āϞ⧇āĻ‚āĻĨ āϚāĻžāĻ°ā§āϟ (Cable length chart)
  • d) āĻļā§āϰāĻŽāĻŋāĻ•āĻĻ⧇āϰ āωāĻĒāĻ¸ā§āĻĨāĻŋāϤāĻŋ āϰ⧇āϜāĻŋāĻ¸ā§āϟāĻžāϰ (Attendance register)
16. āĻ•āĻžāĻœā§‡āϰ āφāϗ⧇ “āϟ⧁āϞāĻŦāĻ•ā§āϏ āϟāĻ•â€ āϕ⧇āύ āĻ•āϰāĻž āĻšāϝāĻŧ?
(Why is a toolbox talk done before starting work?)
  • a) āĻļ⧁āϧ⧁ āĻ—āĻ˛ā§āĻĒ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (Just to chat)
  • b) āĻĻāĻŋāύ⧇āϰ āĻ•āĻžāϜ, āĻā§āρāĻ•āĻŋ āĻ“ āϏ⧇āĻĢāϟāĻŋ āύāĻŋāϝāĻŧāĻŽ āĻāĻ•āϏāĻžāĻĨ⧇ āφāϞ⧋āϚāύāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To discuss work, risks and safety rules for the day)
  • c) āĻŦ⧇āϤāύ āύāĻŋāĻ°ā§āϧāĻžāϰāϪ⧇āϰ āϜāĻ¨ā§āϝ (To decide salaries)
  • d) āĻ–āĻžāĻŦāĻžāϰ⧇āϰ āĻŽā§‡āύ⧁ āĻ āĻŋāĻ• āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ (To decide food menu)
17. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ “āĻŦā§āϝāĻžāĻŖā§āĻĄāωāχāĻĨ” āĻŦāϞāϤ⧇ āϕ⧀ āĻŦā§‹āĻāĻžāϝāĻŧ?
(What does “bandwidth” mean in a network?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āĻ“āϜāύ (Cable weight)
  • b) āύāĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āϟ āϏāĻŽāϝāĻŧ⧇ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ āĻĄā§‡āϟāĻž āĻŸā§āϰāĻžāĻ¨ā§āϏāĻĢāĻžāϰ āĻ•ā§āώāĻŽāϤāĻž (Maximum data transfer capacity per time)
  • c) āϕ⧇āĻŦāϞ⧇āϰ āϰāĻ‚ āϏāĻ‚āĻ–ā§āϝāĻž (Number of colours on cable)
  • d) āĻŦ⧇āϤāύ⧇āϰ āĻĒāϰāĻŋāĻŽāĻžāύ (Amount of salary)
18. “āĻĢāĻŋāĻļāĻŋāĻ‚â€ āφāĻ•ā§āϰāĻŽāĻŖ āϏāĻžāϧāĻžāϰāĻŖāϤ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻšāϝāĻŧ?
(How does a “phishing” attack usually happen?)
  • a) āϕ⧇āĻŦāϞ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ (Through physical cable)
  • b) āϭ⧁āϝāĻŧāĻž āχāĻŽā§‡āχāϞ/āĻ“āϝāĻŧ⧇āĻŦāϏāĻžāχāϟ āĻĻāĻŋāϝāĻŧ⧇ āĻŦā§āϝāĻŦāĻšāĻžāϰāĻ•āĻžāϰ⧀āϰ āϤāĻĨā§āϝ āĻšāĻžāϤ⧇ āύ⧇āĻ“āϝāĻŧāĻž (Fake emails/websites to steal user info)
  • c) āĻĄā§āϰāĻžāĻŽ āĻ˜ā§‹āϰāĻžāύ⧋āϰ āϏāĻŽāϝāĻŧ (While rolling drums)
  • d) āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ (Through fiber splice)
19. āĻšāĻ āĻžā§Ž āφāϗ⧁āύ āϞāĻžāĻ—āϞ⧇ āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āφāϗ⧇ āϕ⧀ āĻ•āϰāĻž āωāϚāĻŋāϤ?
(If a sudden fire occurs, what should be done first?)
  • a) āϏāĻŦāĻžāχāϕ⧇ āĻ–āĻŦāϰ āύāĻž āĻĻāĻŋāϝāĻŧ⧇ āĻ•āĻžāϜ āϚāĻžāϞāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž (Continue work without informing)
  • b) āĻ…ā§āϝāĻžāϞāĻžāĻ°ā§āĻŽ āĻŦāĻžāϜāĻžāύ⧋ āĻ“ āĻŽāĻžāύ⧁āώāϕ⧇ āύāĻŋāϰāĻžāĻĒāĻĻ āĻ¸ā§āĻĨāĻžāύ⧇ āĻĒāĻžāĻ āĻžāύ⧋ (Raise alarm and move people to safety)
  • c) āĻ›āĻŦāĻŋ āϤ⧋āϞāĻž (Take photos)
  • d) āĻĄā§āϰāĻžāĻŽ āϞ⧁āĻ•āĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž (Hide the drum)
20. āĻĻā§€āĻ°ā§āϘ āϏāĻŽāϝāĻŧ āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻžāϰ⧇āϰ āϏāĻžāĻŽāύ⧇ āĻ•āĻžāϜ āĻ•āϰāϞ⧇ āĻāϰāĻ—ā§‹āύāĻŽāĻŋāĻ• āϏ⧇āĻĢāϟāĻŋāϰ āϜāĻ¨ā§āϝ āϕ⧀ āĻ­āĻžāϞ⧋ āĻ…āĻ­ā§āϝāĻžāϏ?
(What is a good ergonomic practice when working long hours on a computer?)
  • a) āĻāĻ•āϟāĻžāύāĻž āĻŦāϏ⧇ āĻĨāĻžāĻ•āĻž (Sit continuously without break)
  • b) āĻĒāĻ°ā§āϝāĻžāϝāĻŧāĻ•ā§āϰāĻŽā§‡ āĻŦāĻŋāϰāϤāĻŋ āύ⧇āĻ“āϝāĻŧāĻž āĻ“ āϏāĻ āĻŋāĻ• āĻ­āĻ™ā§āĻ—āĻŋāϤ⧇ āĻŦāϏāĻž (Take periodic breaks and maintain proper posture)
  • c) āĻšā§‡āϝāĻŧāĻžāϰ āĻ›āĻžāĻĄāĻŧāĻž āĻĻāĻžāρāĻĄāĻŧāĻŋāϝāĻŧ⧇ āĻĨāĻžāĻ•āĻž (Stand all the time)
  • d) āĻ…āĻ¨ā§āϧāĻ•āĻžāϰ āϘāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻž (Work in a dark room)

Answer Key – 100 MCQs (Set 2)

Unit 1: Fiber Optic Communication and Route Inspection (Q1–Q20)

1. c
2. c
3. c
4. d
5. b
6. c
7. a
8. b
9. c
10. b
11. b
12. b
13. c
14. a
15. b
16. c
17. d
18. b
19. b
20. c

Unit 2: Splicing Tools and Process (Q1–Q20)

1. b
2. a
3. b
4. b
5. b
6. b
7. b
8. b
9. a
10. a
11. b
12. b
13. b
14. b
15. b
16. d
17. a
18. a
19. b
20. c

Unit 3: Cable Laying and Installation (Q1–Q20)

1. c
2. b
3. c
4. b
5. b
6. b
7. b
8. b
9. b
10. b
11. b
12. b
13. b
14. b
15. b
16. b
17. b
18. c
19. b
20. b

Unit 4: Testing Installation of OFC (Q1–Q20)

1. a
2. b
3. b
4. b
5. b
6. b
7. b
8. b
9. d
10. b
11. a
12. b
13. c
14. b
15. b
16. b
17. b
18. b
19. b
20. b

Unit 5: Health & Safety Measures and Networking (Q1–Q20)

1. b
2. b
3. b
4. b
5. b
6. b
7. b
8. b
9. b
10. b
11. b
12. b
13. b
14. b
15. b
16. b
17. b
18. b
19. b
20. b

Unit 1: Fiber Optic Communication and Route Inspection – Fill in the Blanks (10 × 1 = 10)

1. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϕ⧋āϰ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āωāĻĒāĻžāĻĻāĻžāύ āĻĻāĻŋāϝāĻŧ⧇ āϤ⧈āϰāĻŋ āĻšāϝāĻŧāĨ¤
(The core of an optical fiber is usually made of ______ material.)
2. āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧇āĻŦāϞāϕ⧇ āĻĒāϰāĻŋāĻŦ⧇āĻļāĻ—āϤ āĻ“ āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ• āĻ•ā§āώāϤāĻŋ āĻĨ⧇āϕ⧇ āĻŦāĻžāρāϚāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ āĻŦāĻžāχāϰ⧇āϰ āφāĻŦāϰāĻŖāϕ⧇ ______ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The outer covering that protects the fiber cable from environmental and mechanical damage is called the ______.)
3. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āϤāĻĨā§āϝ āĻŽā§‚āϞāϤ ______ āϤāϰāĻ™ā§āĻ— āφāĻ•āĻžāϰ⧇ āĻĒā§āϰ⧇āϰāĻŋāϤ āĻšāϝāĻŧāĨ¤
(Information in optical fiber is mainly transmitted in the form of ______ waves.)
4. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āϏāĻŋāĻ¸ā§āĻŸā§‡āĻŽā§‡ āĻĒā§āϰ⧇āϰāĻŖ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇ āĻŦ⧈āĻĻā§āϝ⧁āϤāĻŋāĻ• āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞāϕ⧇ āφāϞ⧋āϤ⧇ āϰ⧂āĻĒāĻžāĻ¨ā§āϤāϰ āĻ•āϰ⧇ āϝ⧇ āϝāĻ¨ā§āĻ¤ā§āϰ, āϤāĻžāϕ⧇ ______ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The device at the transmitting end that converts electrical signals into light is called a/an ______.)
5. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āφāϞ⧋āϰ āĻĒā§āϰāϤāĻŋāĻĢāϞāύ⧇āϰ āĻŽā§‚āϞ āύ⧀āϤāĻŋ āĻšāϞ⧋ ______ internal reflectionāĨ¤
(The main principle of reflection of light in optical fiber is ______ internal reflection.)
6. āĻĻā§€āĻ°ā§āϘ āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇āϰ āĻŸā§‡āϞāĻŋāĻ•āĻŽ āϞāĻŋāĻ™ā§āϕ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(For long-distance telecom links, usually ______-mode fiber is used.)
7. āĻĢāĻžāχāĻŦāĻžāϰ āϞāĻŋāĻ‚āϕ⧇ āĻ•ā§āώāĻŽāϤāĻž āĻšā§āϰāĻžāϏāϕ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āĻāĻ•āĻ• āĻĒā§āϰāϤāĻŋ āĻ•āĻŋāϞ⧋āĻŽāĻŋāϟāĻžāϰ āĻĻāĻŋāϝāĻŧ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(Loss of power in a fiber link is usually expressed in ______ per kilometer.)
8. āĻĢāĻžāχāĻŦāĻžāϰ āĻŸā§‡āϞāĻŋāĻ•āĻŽ āĻŦā§āϝāĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ āĻĒā§āϰāϚāϞāĻŋāϤ āϤāϰāĻ™ā§āĻ—āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āωāχāĻ¨ā§āĻĄā§‹āϗ⧁āϞāĻŋāϰ āĻāĻ•āϟāĻŋ āĻšāϞ⧋ ______ āĻ¨ā§āϝāĻžāύ⧋āĻŽāĻŋāϟāĻžāϰ (āϤ⧃āϤ⧀āϝāĻŧ āωāχāĻ¨ā§āĻĄā§‹)āĨ¤
(One of the commonly used wavelength windows in fiber telecom systems is ______ nanometer (third window).)
9. āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āϰ⧇āĻĢāĻžāϰ⧇āĻ¨ā§āϏ⧇āϰ āϜāĻ¨ā§āϝ āĻĒ⧁āϰ⧋ āϕ⧇āĻŦāϞ āĻĒāĻĨ⧇āϰ āύāĻ•āĻļāĻž āϤ⧈āϰāĻŋ āĻ•āϰ⧇ āϤāĻžāϕ⧇ ______ āĻŽā§āϝāĻžāĻĒ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(During route inspection, the design of the entire cable path for future reference is called a ______ map.)
10. āĻ­ā§‚āĻ—āĻ°ā§āĻ­āĻ¸ā§āĻĨ āϕ⧇āĻŦāϞ⧇āϰ āωāĻĒāϰ⧇ āϏāϤāĻ°ā§āĻ•āϤāĻž āϜāĻžāύāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ āĻŽāĻžāϟāĻŋāϰ āϭ⧇āϤāϰ⧇ āϝ⧇ āϰāĻ™āĻŋāύ āĻŸā§‡āĻĒ āĻĻ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āĻŸā§‡āĻĒ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The colored tape placed in the soil above underground cables for warning is called ______ tape.)

Unit 1: Fiber Optic Communication and Route Inspection – True/False (10 × 1 = 10)

11. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āχāϞ⧇āĻ•ā§āĻŸā§āϰ⧋āĻŽā§āϝāĻžāĻ—āύ⧇āϟāĻŋāĻ• āχāĻ¨ā§āϟāĻžāϰāĻĢāĻŋāϝāĻŧāĻžāϰ⧇āĻ¨ā§āϏ (EMI) āĻĻā§āĻŦāĻžāϰāĻž āϖ⧁āĻŦ āĻŦ⧇āĻļāĻŋ āĻĒā§āϰāĻ­āĻžāĻŦāĻŋāϤ āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Optical fiber is highly affected by electromagnetic interference (EMI). (True / False))
12. āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧋āϰ⧇āϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻŖ āϏ⧂āϚāĻ• āĻ•ā§āĻ˛ā§āϝāĻžāĻĄāĻŋāĻ‚ āĻāϰ āĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļāĻŋ āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(The refractive index of the fiber core is higher than that of the cladding. (True / False))
13. āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻāĻ•āϟāĻŋāϰ āĻŦ⧇āĻļāĻŋ āĻŽā§‹āĻĄ āĻŦāĻž āĻĒāĻĨ āĻĻāĻŋāϝāĻŧ⧇ āφāϞ⧋ āĻ­ā§āϰāĻŽāĻŖ āĻ•āϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(In multimode fiber, light travels through more than one mode or path. (True / False))
14. āϏāĻŋāĻ™ā§āϗ⧇āϞ āĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻ¸ā§āĻŦāĻ˛ā§āĻĒ āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇āϰ LAN āϞāĻŋāĻ™ā§āϕ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ āφāϰ āĻŽāĻžāĻ˛ā§āϟāĻŋāĻŽā§‹āĻĄ āĻĢāĻžāχāĻŦāĻžāϰ āϏāĻŽā§āĻĻā§āϰāϤāϞ āϕ⧇āĻŦāϞ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Single-mode fiber is generally used for short LAN links and multimode fiber for submarine cables. (True / False))
15. āϰ⧁āϟ āχāύāĻ¸ā§āĻĒ⧇āĻ•āĻļāύ⧇āϰ āϏāĻŽāϝāĻŧ āϰāĻžāĻ¸ā§āϤāĻžāϰ āĻ•ā§āϰāϏāĻŋāĻ‚, āϰ⧇āϞ āĻ•ā§āϰāϏāĻŋāĻ‚, āύāĻĻā§€ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āύ⧋āϟ āĻ•āϰ⧇ āϰāĻžāĻ–āĻž āĻĒā§āϰāϝāĻŧā§‹āϜāύāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(During route inspection, it is necessary to note road crossings, rail crossings, rivers, etc. (True / False))
16. OFC āϰ⧁āϟ āĻĒā§āĻ˛ā§āϝāĻžāύ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āĻ­āĻŦāĻŋāĻˇā§āĻ¯ā§Ž āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āĻ• āϏāĻŽā§āĻĒā§āϰāϏāĻžāϰāϪ⧇āϰ āϏāĻŽā§āĻ­āĻžāĻŦāύāĻžāĻ“ āĻŦāĻŋāĻŦ⧇āϚāύāĻž āĻ•āϰāϤ⧇ āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(While planning an OFC route, possible future network expansion must also be considered. (True / False))
17. āĻĢāĻžāχāĻŦāĻžāϰ āϞāĻŋāĻ™ā§āĻ• āĻŦāĻžāĻœā§‡āϟ āĻ•āĻ–āύ⧋āχ āĻ•āύ⧇āĻ•ā§āϟāϰ āĻāĻŦāĻ‚ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϞāϏāϕ⧇ āĻŦāĻŋāĻŦ⧇āϚāύāĻž āĻ•āϰ⧇ āύāĻžāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Fiber link budget never considers connector and splice losses. (True / False))
18. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ āϕ⧇āĻŦāϞ āϤāĻžāĻŽāĻžāϰ āϕ⧇āĻŦāϞ⧇āϰ āϤ⧁āϞāύāĻžāϝāĻŧ āĻšāĻžāϞāĻ•āĻž āĻ“ āϛ⧋āϟ āĻŦā§āϝāĻžāϏ⧇āϰ āĻšāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Optical fiber cable can be lighter and have a smaller diameter than copper cable. (True / False))
19. āϰ⧁āϟ āĻŽāĻžāĻ°ā§āĻ•āĻžāϰ āĻŦāϏāĻžāύ⧋ āĻšāϞ⧇ āĻ­ā§‚āĻ—āĻ°ā§āĻ­āĻ¸ā§āĻĨ āϕ⧇āĻŦāϞ āĻĒāĻĨ āϏāĻšāĻœā§‡ āϚāĻŋāĻšā§āύāĻŋāϤ āĻ•āϰāĻž āϝāĻžāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Route markers help to easily identify underground cable paths. (True / False))
20. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āφāϞ⧋ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻĻ⧃āĻļā§āϝāĻŽāĻžāύ (visible) āφāϞ⧋ āĻŦā§āϝāĻžāĻ¨ā§āĻĄā§‡ āĻĨāĻžāϕ⧇, āχāύāĻĢā§āϰāĻžāϰ⧇āĻĄ āĻŦā§āϝāĻžāĻ¨ā§āĻĄā§‡ āύāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(The light used in optical fiber is generally in the visible band, not in the infrared band. (True / False))

Unit 2: Splicing Tools and Process – Fill in the Blanks (10 × 1 = 10)

21. āĻĻ⧁āχāϟāĻŋ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āχāϞ⧇āĻ•āĻŸā§āϰāĻŋāĻ• āφāĻ°ā§āĻ• āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āĻœā§‹āĻĄāĻŧāĻž āĻĻ⧇āĻ“āϝāĻŧāĻžāϰ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϕ⧇ ______ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The process of joining two fibers using an electric arc is called ______ splicing.)
22. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāϟāĻžāϰ āφāϗ⧇ āĻĒā§āϞāĻžāĻ¸ā§āϟāĻŋāĻ• āϕ⧋āϟāĻŋāĻ‚ āϏāϰāĻžāϤ⧇ āϝ⧇ āϝāĻ¨ā§āĻ¤ā§āϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ āĻŦāϞ⧇āĨ¤
(The tool used to remove the plastic coating before cutting the fiber is called a fiber ______.)
23. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•āϰāĻžāϰ āφāϗ⧇ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ āϏāĻŽāĻžāύ āĻ“ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞāĻ­āĻžāĻŦ⧇ āĻ•āĻžāϟāĻžāϰ āϜāĻ¨ā§āϝ āϝ⧇ āϝāĻ¨ā§āĻ¤ā§āϰ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The equipment used to cut the fiber end flat and perpendicular before splicing is called a ______.)
24. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻĒāϰ āϜāϝāĻŧ⧇āĻ¨ā§āϟāϕ⧇ āϏ⧁āϰāĻ•ā§āώāĻžāϰ āϜāĻ¨ā§āϝ āϝ⧇ āϟāĻŋāωāĻŦ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āĻ¸ā§āϞāĻŋāĻ­ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The tube used to protect a fusion splice joint is called a ______ sleeve.)
25. āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āϏāĻ āĻŋāĻ•āĻ­āĻžāĻŦ⧇ āϧāϰ⧇ āϰāĻžāĻ–āĻžāϰ āϜāĻ¨ā§āϝ ______ āĻŦā§āϞāĻ• āĻŦāĻž āĻ¸ā§āϞāĻŋāĻ­ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(In mechanical splicing, a holding ______ or sleeve is used to align the fibers properly.)
26. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āĻĢāĻžāχāĻŦāĻžāϰ āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ āĻ“ āϞāĻŋāĻ¨ā§āϟ-āĻĢā§āϰāĻŋ āϟāĻŋāĻ¸ā§āϝ⧁ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(During splicing, fibers are usually cleaned using ______ alcohol and lint-free tissue.)
27. āĻāĻ•āϏāĻžāĻĨ⧇ āĻāĻ•āĻžāϧāĻŋāĻ• āϰāĻŋāĻŦāύ āĻĢāĻžāχāĻŦāĻžāϰ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•āϰāĻžāϰ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϕ⧇ ______ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The process of splicing multiple ribbon fibers at once is called ______ splicing.)
28. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āĻļ⧇āώ⧇ āĻĢāĻžāχāĻŦāĻžāϰ āϜāϝāĻŧ⧇āĻ¨ā§āϟ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āĻŸā§āϰ⧇-āϤ⧇ āϏ⧁āĻļ⧃āĻ™ā§āĻ–āϞāĻ­āĻžāĻŦ⧇ āϏāĻžāϜāĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āĻž āĻšāϝāĻŧāĨ¤
(After splicing, the fiber joints are usually arranged neatly in a ______ tray.)
29. āĻĒā§āϰāϤāĻŋāϟāĻŋ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻĒāϝāĻŧ⧇āĻ¨ā§āĻŸā§‡āϰ āϞāϏ āĻ“ āϕ⧋āϰ āύāĻŽā§āĻŦāϰ āϞāĻŋāϖ⧇ āϰāĻžāĻ–āĻžāϰ āύāĻĨāĻŋāϕ⧇ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ ______ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The record that notes the loss and core number of each splice point is called a splicing ______.)
30. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻ•ā§āϞ⧋āϜāĻžāϰ āĻ¸ā§āĻĨāĻžāĻĒāύ āĻ•āϰāĻžāϰ āφāϗ⧇ āϕ⧇āĻŦāϞāϕ⧇ āĻ­āĻŋāϤāϰ⧇ āĻĸā§‹āĻ•āĻžāϤ⧇ āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āϰ⧇āϖ⧇ āϝ⧇ āϞ⧁āĻĒ āĻŦāĻžāύāĻžāύ⧋ āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āϞ⧁āĻĒ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(Before installing the splice closure, the extra cable length kept inside as a loop is called a ______ loop.)

Unit 2: Splicing Tools and Process – True/False (10 × 1 = 10)

31. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻšā§‡āϝāĻŧ⧇ āĻ•āĻŽ āϞāϏ āĻĻ⧇āϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Fusion splice generally gives lower loss than mechanical splice. (True / False))
32. āĻ•ā§āϞāĻŋāĻ­āĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āχāĻšā§āϛ⧇āĻŽāϤ⧋ āϤāĻŋāĻ°ā§āϝāĻ•āĻ­āĻžāĻŦ⧇ āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāϞ⧇ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϞāϏ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If the fiber is randomly cut at an angle during cleaving, splice loss decreases. (True / False))
33. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚-āĻāϰ āφāϗ⧇ āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻĨāĻžāĻ•āĻž āϧ⧁āϞ⧋-āĻŽāϝāĻŧāϞāĻž āĻĒāϰāĻŋāĻˇā§āĻ•āĻžāϰ āύāĻž āĻ•āϰāϞ⧇āĻ“ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ⧇āϰ āĻŽāĻžāύ⧇ āϕ⧋āύ⧋ āĻĒā§āϰāĻ­āĻžāĻŦ āĻĒāĻĄāĻŧ⧇ āύāĻžāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If dust and dirt on the fiber are not cleaned before splicing, splice quality is not affected. (True / False))
34. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻžāϰ⧇āϰ āχāϞ⧇āĻ•āĻŸā§āϰ⧋āĻĄ āϖ⧁āĻŦ āĻŦ⧇āĻļāĻŋ āĻŽāϝāĻŧāϞāĻž āĻŦāĻž āĻĒ⧁āϰ⧋āύ⧋ āĻšāϞ⧇ āφāĻ°ā§āĻ• āĻ¸ā§āĻĨāĻŋāϤāĻŋāĻļā§€āϞ āĻĨāĻžāϕ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If the fusion splicer electrodes are very dirty or old, the arc remains stable. (True / False))
35. āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ āĻ¸ā§āϞāĻŋāĻ­ āĻ āĻŋāĻ•āĻ āĻžāĻ• āĻšāĻŋāϟ-āĻļā§āϰāĻŋāĻ‚āĻ• āύāĻž āĻ•āϰāϞ⧇ āĻĢāĻžāχāĻŦāĻžāϰ āϜāϝāĻŧ⧇āĻ¨ā§āϟ āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ• āϚāĻžāĻĒ āĻĒ⧇āϞ⧇ āϭ⧇āϙ⧇ āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If the protection sleeve is not heat-shrunk properly, the fiber joint may break under mechanical stress. (True / False))
36. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϞāĻ— āĻļāĻŋāϟ āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āĻĢāĻ˛ā§āϟ āϞ⧋āϕ⧇āϟāĻŋāĻ‚ āĻ“ āĻŽā§‡āχāύāĻŸā§‡āύ⧇āĻ¨ā§āϏ⧇ āϏāĻžāĻšāĻžāĻ¯ā§āϝ āĻ•āϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(The splicing log sheet helps in future fault locating and maintenance. (True / False))
37. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻŸā§āϰ⧇-āϤ⧇ āĻĢāĻžāχāĻŦāĻžāϰāϕ⧇ āϖ⧁āĻŦ āϛ⧋āϟ āĻŦ⧇āĻ¨ā§āĻĄ āϰ⧇āĻĄāĻŋāϝāĻŧāĻžāϏ⧇ āϰāĻžāĻ–āϞ⧇ āϕ⧋āύ⧋ āϏāĻŽāĻ¸ā§āϝāĻž āĻšāϝāĻŧ āύāĻžāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Keeping fibers in very small bend radius in a splice tray causes no problem. (True / False))
38. āĻŽā§‡āĻ•āĻžāύāĻŋāĻ•ā§āϝāĻžāϞ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āϏāĻžāϧāĻžāϰāĻŖāϤ āĻ…āĻ¸ā§āĻĨāĻžāϝāĻŧā§€ āĻŦāĻž āϜāϰ⧁āϰāĻŋ āĻ•āĻžāĻœā§‡ āĻŦ⧇āĻļāĻŋ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Mechanical splices are generally used more for temporary or emergency work. (True / False))
39. āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚ āϏāĻžāχāĻŸā§‡ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϛ⧋āϟ āϟ⧁āĻ•āϰ⧋āϗ⧁āϞ⧋ āĻ āĻŋāĻ•āĻŽāϤ⧋ āĻĄāĻŋāϏāĻĒā§‹āϜ āύāĻž āĻ•āϰāϞ⧇ āĻ¸ā§āĻŦāĻžāĻ¸ā§āĻĨā§āϝ āĻā§āρāĻ•āĻŋ āϤ⧈āϰāĻŋ āĻšāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If small pieces of fiber are not disposed of properly at the splicing site, health risks may arise. (True / False))
40. āĻĢāĻŋāωāĻļāύ āĻ¸ā§āĻĒā§āϞāĻžāχāϏ āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻ•āĻĒāĻžāϰ āϕ⧇āĻŦāϞ⧇āϰ āϜāĻ¨ā§āϝ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Fusion splicing is used only for copper cables. (True / False))

Unit 3: Cable Laying and Installation – Fill in the Blanks (10 × 1 = 10)

41. āĻ­ā§‚āĻ—āĻ°ā§āĻ­āĻ¸ā§āĻĨ OFC āĻŸā§āϰ⧇āĻžā§āĻšā§‡āϰ āύāĻŋāĻšā§‡ āϕ⧇āĻŦāϞāϕ⧇ āύāϰāĻŽāĻ­āĻžāĻŦ⧇ āϰāĻžāĻ–āϤ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āĻŦāĻŋāĻ›āĻžāύ⧋ āĻšāϝāĻŧāĨ¤
(At the bottom of an underground OFC trench, ______ is usually laid to support the cable softly.)
42. OFC āϕ⧇āĻŦāϞ āϟāĻžāύāĻžāϰ āϏāĻŽāϝāĻŧ āϘāĻ°ā§āώāĻŖ āĻ•āĻŽāĻžāύ⧋āϰ āϜāĻ¨ā§āϝ ______ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(To reduce friction while pulling OFC cable, ______ is used.)
43. āϕ⧇āĻŦāϞ āϰ⧁āĻŸā§‡āϰ āĻ•ā§āϰāϏāĻŋāĻ‚, āĻŽā§āϝāĻžāύāĻšā§‹āϞ, āϜāϝāĻŧ⧇āĻ¨ā§āϟ āχāĻ¤ā§āϝāĻžāĻĻāĻŋ āĻĻ⧇āĻ–āĻžāύ⧋ āύāĻ•āĻļāĻžāϕ⧇ “āĻ…ā§āϝāĻžāϜ-______ āĻĄā§āϰāϝāĻŧāĻŋāĻ‚â€ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The drawing that shows cable route crossings, manholes, joints etc. is called “as-______ drawing”.)
44. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽā§‡ āϝ⧇ āϚāĻŋāĻšā§āύ āĻĻāĻŋāϝāĻŧ⧇ āĻŽā§‹āϟ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻ“ āĻ•āĻžāϟāĻŋāĻ‚ āϞ⧇āĻ¨ā§āĻĨ āĻĻ⧇āĻ–āĻžāύ⧋ āĻĨāĻžāϕ⧇ āϤāĻžāϕ⧇ ______ āĻŽāĻžāĻ°ā§āĻ•āĻŋāĻ‚ āĻŦāϞ⧇āĨ¤
(The markings on a cable drum that show total length and cutting lengths are called ______ markings.)
45. āϰāĻžāĻ¸ā§āϤāĻžāϰ āĻĒāĻžāĻļ⧇ āĻĒā§āϰāϤāĻŋāĻˇā§āĻ āĻžāύ āĻŦāĻž āĻ­āĻŦāύ⧇ āĻĒā§āϰāĻŦ⧇āĻļ⧇āϰ āφāϗ⧇ āĻŸā§āϰ⧇āĻžā§āϚ āĻĨ⧇āϕ⧇ āωāĻĒāϰ⧇ āĻ“āĻ āĻž āĻ…āĻ‚āĻļāϕ⧇ āϕ⧇āĻŦāϞ ______ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The portion where the cable rises from the trench to enter a building or premises is called the cable ______.)
46. āĻāϝāĻŧāĻžāϰāĻŋāϝāĻŧāĻžāϞ āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ⧇āϰ āϜāĻ¨ā§āϝ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āϏāĻŽā§āĻĒā§‚āĻ°ā§āĻŖ āĻĄāĻŋāĻœā§‡āϞ⧇āĻ•āĻŸā§āϰāĻŋāĻ• āύāĻŋāĻœā§‡ āύāĻŋāĻœā§‡ āϟāϙ⧇ āĻĨāĻžāĻ•āĻž āϕ⧇āĻŦāϞāϕ⧇ ______ āϕ⧇āĻŦāϞ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The fully dielectric self-supporting cable used for aerial installation is called ______ cable.)
47. āϕ⧇āĻŦāϞāϕ⧇ āϰāĻžāĻ¸ā§āϤāĻžāϰ āωāĻĒāϰ⧇āϰ āϏāĻžāϰāĻĢ⧇āϏ⧇ āϖ⧁āρāϟāĻŋāϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āύāĻŋāϝāĻŧ⧇ āϗ⧇āϞ⧇ āϤāĻžāϕ⧇ ______ āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(When the cable is routed above ground along poles, it is called ______ installation.)
48. āĻŸā§āϰ⧇āĻžā§āĻšā§‡ āϕ⧇āĻŦāϞ⧇āϰ āĻ•āĻŋāϛ⧁āϟāĻž āĻ“āĻĒāϰ⧇ āϏāϤāĻ°ā§āĻ•āĻŦāĻžāĻ°ā§āϤāĻžāϏāĻš āϝ⧇ āĻĒā§āϞāĻžāĻ¸ā§āϟāĻŋāĻ• āϰāĻŋāĻŦāύ āĻŦāϏāĻžāύ⧋ āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āĻŸā§‡āĻĒ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The plastic ribbon with warning text placed above the cable in the trench is called ______ tape.)
49. āϰ⧁āĻŸā§‡ āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āϕ⧇āĻŦāϞ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āϰ⧇āϖ⧇ āĻ­āĻŦāĻŋāĻˇā§āĻ¯ā§Ž āĻ•āĻžāĻœā§‡āϰ āϏ⧁āĻŦāĻŋāϧāĻžāϰ āϜāĻ¨ā§āϝ āϝ⧇ āϞ⧁āĻĒ āϰāĻžāĻ–āĻž āĻšāϝāĻŧ āϤāĻžāϕ⧇ ______ āϞ⧁āĻĒ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The loop made with extra cable length for future work convenience is called a ______ loop.)
50. āĻŽāĻžāϟāĻŋāϰ āύāĻŋāĻšā§‡ OFC āĻ¸ā§āĻĨāĻžāĻĒāύ āĻ•āϰāĻžāϰ āφāϗ⧇ āĻ¸ā§āĻĨāĻžāύ⧀āϝāĻŧ āĻ•āĻ°ā§āϤ⧃āĻĒāĻ•ā§āώ āĻĨ⧇āϕ⧇ āĻ…āύ⧁āĻŽāϤāĻŋ āύ⧇āĻ“āϝāĻŧāĻžāϰ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϕ⧇ ______ -of-way āĻ…āύ⧁āĻŽāϤāĻŋ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The process of taking permission from local authorities before installing OFC underground is called ______-of-way permission.)

Unit 3: Cable Laying and Installation – True/False (10 × 1 = 10)

51. āϕ⧇āĻŦāϞ āĻŸā§āϰ⧇āĻžā§āϚ āϝāϤ āĻ…āĻ—āĻ­ā§€āϰ āĻšāĻŦ⧇, āϕ⧇āĻŦāϞ āϤāϤ āύāĻŋāϰāĻžāĻĒāĻĻ āĻĨāĻžāϕ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(The shallower the cable trench, the safer the cable is. (True / False))
52. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āϧāĻžāϰāĻžāϞ⧋ āĻĒāĻžāĻĨāϰ⧇āϰ āωāĻĒāϰ āĻĻāĻŋāϝāĻŧ⧇ āϕ⧇āĻŦāϞ āĻŸā§‡āύ⧇ āύ⧇āĻ“āϝāĻŧāĻž āĻŦāĻŋāĻĒāĻœā§āϜāύāĻ•āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(It is dangerous to pull the cable over sharp stones during cable laying. (True / False))
53. āϕ⧇āĻŦāϞ āĻŦā§āϞ⧋āϝāĻŧāĻŋāĻ‚ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āϕ⧇āĻŦāϞ āĻŽā§‚āϞāϤ āĻŦāĻžāϤāĻžāϏ⧇āϰ āϚāĻžāĻĒ⧇āϰ āϏāĻžāĻšāĻžāĻ¯ā§āϝ⧇ āĻĄāĻžāĻ•ā§āĻŸā§‡āϰ āĻ­āĻŋāϤāϰ āĻāĻ—āĻŋāϝāĻŧ⧇ āϝāĻžāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(In cable blowing method, the cable mainly moves inside the duct by air pressure. (True / False))
54. āϕ⧇āĻŦāϞ āĻĄā§āϰāĻžāĻŽ āϏāĻŦāϏāĻŽāϝāĻŧ āϏāĻ āĻŋāĻ• āĻĻāĻŋāϕ⧇ āĻ˜ā§‹āϰāĻžāύ⧋ āύāĻž āĻšāϞ⧇ āϕ⧇āĻŦāϞ āĻĒ⧇āρāϚāĻŋāϝāĻŧ⧇ āĻ•ā§āώāϤāĻŋāĻ—ā§āϰāĻ¸ā§āϤ āĻšāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If the cable drum is not rotated in the correct direction, the cable may twist and get damaged. (True / False))
55. āύāĻĻā§€ āĻŦāĻž āĻŦāĻĄāĻŧ āύāĻžāϞāĻž āĻ•ā§āϰāϏāĻŋāĻ‚-āĻ OFC āϏāĻžāϧāĻžāϰāĻŖāϤ āϏ⧇āϤ⧁āϰ āĻ•āĻžāĻ āĻžāĻŽā§‹ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āύ⧇āĻ“āϝāĻŧāĻž āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(At river or major drain crossings, OFC is often routed using the bridge structure. (True / False))
56. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻļ⧇āώ⧇ āϕ⧇āĻŦāϞ āϰ⧁āϟ āĻŽā§āϝāĻžāĻĒ āφāĻĒāĻĄā§‡āϟ āĻ•āϰāĻž āϗ⧁āϰ⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖ āύāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Updating the cable route map after installation is not important. (True / False))
57. āφāĻ°ā§āĻŽāĻžāĻ°ā§āĻĄ āϕ⧇āĻŦāϞ āϝāĻžāĻ¨ā§āĻ¤ā§āϰāĻŋāĻ• āĻ•ā§āώāϤāĻŋ āĻĨ⧇āϕ⧇ āϕ⧇āĻŦāϞāϕ⧇ āĻ…āϤāĻŋāϰāĻŋāĻ•ā§āϤ āϏ⧁āϰāĻ•ā§āώāĻž āĻĻ⧇āϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Armored cable provides extra protection against mechanical damage. (True / False))
58. āϕ⧇āĻŦāϞ āϞ⧇āϝāĻŧāĻŋāĻ‚-āĻāϰ āϏāĻŽāϝāĻŧ āĻŸā§āϰāĻžāĻĢāĻŋāĻ• āĻŽā§āϝāĻžāύ⧇āϜāĻŽā§‡āĻ¨ā§āϟ āĻ āĻŋāĻ•āĻ­āĻžāĻŦ⧇ āύāĻž āĻšāϞ⧇ āĻĻ⧁āĻ°ā§āϘāϟāύāĻžāϰ āĻā§āρāĻ•āĻŋ āĻŦāĻžāĻĄāĻŧ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If traffic management is not proper during cable laying, accident risk increases. (True / False))
59. āĻĄā§‡āĻžā§āϜāĻžāϰ āĻŸā§‡āĻĒ āϏāĻŦāϏāĻŽāϝāĻŧ āϕ⧇āĻŦāϞ⧇āϰ āĻāĻ•āĻĻāĻŽ āύāĻŋāĻšā§‡ āϰāĻžāĻ–āĻž āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Danger tape is always placed directly below the cable. (True / False))
60. āĻāϝāĻŧāĻžāϰāĻŋāϝāĻŧāĻžāϞ OFC āϞāĻžāχāύ āĻ¸ā§āĻĨāĻžāĻĒāύ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āĻ“āĻ­āĻžāϰāĻšā§‡āĻĄ āĻ•ā§āϞāĻŋāϝāĻŧāĻžāϰ⧇āĻ¨ā§āϏ āĻ āĻŋāĻ•āĻŽāϤ⧋ āĻŦāϜāĻžāϝāĻŧ āϰāĻžāĻ–āĻž āĻĒā§āϰāϝāĻŧā§‹āϜāύāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(While installing aerial OFC lines, proper overhead clearance must be maintained. (True / False))

Unit 4: Testing Installation of OFC – Fill in the Blanks (10 × 1 = 10)

61. āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ āĻŸā§‡āĻ¸ā§āϟ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āĻŽāĻŋāϟāĻžāϰ āĻ“ āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āϏ⧋āĻ°ā§āϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(For insertion loss testing, an optical ______ meter and light source are generally used.)
62. OTDR āĻāϰ āĻĒā§‚āĻ°ā§āĻŖāϰ⧂āĻĒ āĻšāϞ⧋ Optical Time ______ ReflectometerāĨ¤
(The full form of OTDR is Optical Time ______ Reflectometer.)
63. OTDR-āĻāϰ āϏāĻžāĻŽāύ⧇ āĻĻāĻŋāϕ⧇āϰ āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āĻ“ āύāĻŋāĻ•āϟāĻŦāĻ°ā§āϤ⧀ āχāϭ⧇āĻ¨ā§āϟ āϏāĻ āĻŋāĻ•āĻ­āĻžāĻŦ⧇ āĻŽāĻžāĻĒāĻžāϰ āϜāĻ¨ā§āϝ ______ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(To properly measure the near-end connector and events on OTDR, a ______ fiber is used.)
64. āϞāĻŋāĻ™ā§āϕ⧇āϰ āĻĻā§‚āϰ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇āϰ āχāϭ⧇āĻ¨ā§āϟ āĻ­āĻžāϞ⧋āĻ­āĻžāĻŦ⧇ āĻĻ⧇āĻ–āĻžāϰ āϜāĻ¨ā§āϝ OTDR āĻŸā§‡āĻ¸ā§āĻŸā§‡ ______ āĻĢāĻžāχāĻŦāĻžāϰ āϝ⧋āĻ— āĻ•āϰāĻž āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇āĨ¤
(To see far-end events clearly in OTDR testing, a ______ fiber can be added at the far end.)
65. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āϏāĻžāϧāĻžāϰāύāϤ ______ āĻāĻ•āϕ⧇ āĻĒāϰāĻŋāĻŽāĻžāĻĒ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(Optical power is usually measured in ______ units.)
66. āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϰ⧇āĻ• āĻŦāĻž āϤ⧀āĻŦā§āϰ āϞāϏ āĻļāύāĻžāĻ•ā§āϤ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ ______ āϝāĻ¨ā§āĻ¤ā§āϰ āϖ⧁āĻŦ āĻ•āĻžāĻ°ā§āϝāĻ•āϰāĨ¤
(For detecting fiber breaks or severe loss, the ______ instrument is very effective.)
67. āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ āĻŸā§‡āĻ¸ā§āϟ āĻ•āϰāĻžāϰ āφāϗ⧇ “āϰ⧇āĻĢāĻžāϰ⧇āĻ¨ā§āĻ¸â€ āϏ⧇āϟ āĻ•āϰāϤ⧇ āĻāĻ•āϟāĻŋ ______ āϞāĻŋāĻ™ā§āĻ•āϕ⧇ ā§Ļ dB āϧāϰāĻž āĻšāϝāĻŧāĨ¤
(Before insertion loss testing, a ______ link is set as 0 dB to establish reference.)
68. āĻĢāĻžāχāĻŦāĻžāϰ⧇ āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āφāϞ⧋ āϝāĻžāĻšā§āϛ⧇ āϕ⧀ āύāĻž āϤāĻž āĻĒāϰ⧀āĻ•ā§āώāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āϏāĻšāϜ āĻāĻ•āϟāĻŋ āϝāĻ¨ā§āĻ¤ā§āϰ āĻšāϞ⧋ ______ (VFL)āĨ¤
(A simple tool to check if light is passing through a fiber is ______ (VFL).)
69. āĻŸā§‡āĻ¸ā§āϟ āĻĄā§‡āϟāĻž āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āĻŦāĻŋāĻļā§āϞ⧇āώāϪ⧇āϰ āϜāĻ¨ā§āϝ āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ•āϰ⧇ āϰāĻžāĻ–āĻžāϰ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϕ⧇ āĻĄā§‡āϟāĻž ______ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The process of keeping test data for future analysis is called data ______.)
70. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŸā§‡āĻ¸ā§āϟ āϰāĻŋāĻĒā§‹āĻ°ā§āĻŸā§‡ āĻĒā§āϰāϤāĻŋāϟāĻŋ āϞāĻŋāĻ™ā§āϕ⧇āϰ āĻĢāϞāĻžāĻĢāϞ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ /Fail āĻšāĻŋāϏ⧇āĻŦ⧇ āωāĻ˛ā§āϞ⧇āĻ– āĻĨāĻžāϕ⧇āĨ¤
(In installation test reports, the result of each link is usually mentioned as ______ / Fail.)

Unit 4: Testing Installation of OFC – True/False (10 × 1 = 10)

71. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āφāϗ⧇ āĻŸā§‡āĻ¸ā§āϟ āϝāĻ¨ā§āĻ¤ā§āϰ⧇āϰ “āĻ“āϝāĻŧāĻžāĻ°ā§āĻŽ āφāĻĒ āϟāĻžāχāĻŽâ€ āĻĻ⧇āĻ“āϝāĻŧāĻž āĻĻāϰāĻ•āĻžāϰ āύ⧇āχāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Warm-up time is not needed for test instruments before installation testing. (True / False))
72. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāύ⧇āĻ•ā§āϟāϰ āύ⧋āĻ‚āϰāĻž āĻĨāĻžāĻ•āϞ⧇ āχāύāϏāĻžāĻ°ā§āĻļāύ āϞāϏ⧇āϰ āĻŽāĻžāύ āϏāĻžāϧāĻžāϰāĻŖāϤ āφāϰāĻ“ āĻ–āĻžāϰāĻžāĻĒ āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If fiber connectors are dirty, the insertion loss usually gets worse. (True / False))
73. OTDR āĻŸā§āϰ⧇āϏ⧇ āĻšāĻ āĻžā§Ž āϤ⧀āĻŦā§āϰ āĻĄā§āϰāĻĒ āĻĻ⧇āĻ–āĻž āϗ⧇āϞ⧇ āϏ⧇āĻ–āĻžāύ⧇ āĻĢāĻžāχāĻŦāĻžāϰ āĻŦā§āϰ⧇āĻ• āĻĨāĻžāĻ•āϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(A sudden steep drop in the OTDR trace may indicate a fiber break. (True / False))
74. āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻāĻ• āĻĻāĻŋāĻ• āĻĨ⧇āϕ⧇ OTDR āĻŸā§‡āĻ¸ā§āϟ āĻ•āϰāϞ⧇ āϏāĻŦ āϏāĻŽāϝāĻŧ āϏāĻ āĻŋāĻ• āĻ—āĻĄāĻŧ āϞāϏ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Testing only from one side with OTDR always gives the exact average loss. (True / False))
75. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āĻŽāĻŋāϟāĻžāϰ⧇ -ā§§ā§Ģ dBm āĻŽāĻžāύ -ā§Šā§Ļ dBm-āĻāϰ āĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļāĻŋ āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(-15 dBm on an optical power meter indicates higher power than -30 dBm. (True / False))
76. OTDR-āĻāϰ āĻĄāĻžāχāύāĻžāĻŽāĻŋāĻ• āϰ⧇āĻžā§āϜ āϝāϤ āĻŦ⧇āĻļāĻŋ, āϤāϤ āĻĻā§‚āϰ⧇āϰ āĻ“ āϛ⧋āϟ āχāϭ⧇āĻ¨ā§āϟ āĻĻ⧇āĻ–āĻž āϏāĻŽā§āĻ­āĻŦāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(The higher the dynamic range of an OTDR, the easier it is to see longer distances and smaller events. (True / False))
77. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŸā§‡āĻ¸ā§āĻŸā§‡ “āϞ⧇āĻŦ⧇āϞāĻŋāĻ‚â€ āĻ­āĻžāϞ⧋āĻ­āĻžāĻŦ⧇ āύāĻž āĻ•āϰāϞ⧇ āĻ­āĻŦāĻŋāĻˇā§āϝāϤ⧇ āĻĢāĻ˛ā§āϟ āĻŸā§āϰ⧇āϏ āĻ•āϰāĻž āĻ•āĻ āĻŋāύ āĻšāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If labeling is not done properly during installation tests, future fault tracing may become difficult. (True / False))
78. āĻŸā§‡āĻ¸ā§āϟ āϰāĻŋāĻĒā§‹āĻ°ā§āϟ āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ•āϰāĻžāϰ āĻĻāϰāĻ•āĻžāϰ āύ⧇āχ, āĻ•āĻžāϰāĻŖ āĻĒā§āϰāϤāĻŋāĻŦāĻžāϰ āύāϤ⧁āύ āĻ•āϰ⧇ āĻŸā§‡āĻ¸ā§āϟ āĻ•āϰāĻž āϝāĻžāĻŦ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(There is no need to store test reports because tests can be redone every time. (True / False))
79. āĻŸā§‡āĻ¸ā§āϟāĻŋāĻ‚ āϚāϞāĻžāĻ•āĻžāϞ⧀āύ āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āĻ“āĻĒāϰ āĻœā§‹āϰ⧇ āĻĒāĻž āĻĒāĻĄāĻŧāϞ⧇ āϏāĻžāĻŽāϝāĻŧāĻŋāĻ• āĻŦ⧇āĻ¨ā§āĻĄ āϞāϏ āĻŦāĻžāĻĄāĻŧāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(If someone steps hard on the fiber during testing, temporary bend loss may increase. (True / False))
80. āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ āĻŸā§‡āĻ¸ā§āĻŸā§‡āϰ āϏāĻŽāϝāĻŧ āϏ⧇āĻĢāϟāĻŋ āϰ⧁āϞ āĻŽāĻžāύāĻž āĻļ⧁āϧ⧁ āĻĢāϰāĻŽāĻžāϞāĻŋāϟāĻŋ, āĻŦāĻžāĻ¸ā§āϤāĻŦ⧇ āĻĒā§āϰāϝāĻŧā§‹āϜāύ āύ⧇āχāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Following safety rules during installation testing is just a formality and not really needed. (True / False))

Unit 5: Health & Safety Measures and Networking – Fill in the Blanks (10 × 1 = 10)

81. āĻĢāĻžāχāĻŦāĻžāϰ āĻ•āĻžāϟāĻžāϰ āĻ“ āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻŋāĻ‚ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āĻšā§‹āĻ– āϰāĻ•ā§āώāĻžāϰ āϜāĻ¨ā§āϝ ______ āĻ—āĻ—āϞāϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āωāϚāĻŋāϤāĨ¤
(While cutting and stripping fibers, ______ goggles should be used to protect the eyes.)
82. āĻŸā§āϰ⧇āĻžā§āĻšā§‡āϰ āϭ⧇āϤāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āφāϗ⧇ āĻŦāĻžāϝāĻŧ⧁ āϚāϞāĻžāϚāϞ āĻ“ āĻ—ā§āϝāĻžāϏ āĻĒāϰ⧀āĻ•ā§āώāĻž āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āĻāĻ•āϟāĻŋ ______ āĻšā§‡āĻ• āĻ•āϰāĻž āĻĻāϰāĻ•āĻžāϰāĨ¤
(Before working inside a trench, a ______ check is required for ventilation and gas.)
83. āωāĻšā§āϚ āĻ¸ā§āĻĨāĻžāύ⧇ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āĻĒāĻĄāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻž āĻĨ⧇āϕ⧇ āϰāĻ•ā§āώāĻž āĻĒ⧇āϤ⧇ ______ āĻšāĻžāϰāύ⧇āϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(While working at heights, a ______ harness is used to prevent falls.)
84. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻĒā§āϰāϤāĻŋāϟāĻŋ āĻĄāĻŋāĻ­āĻžāχāϏāϕ⧇ āĻļāύāĻžāĻ•ā§āϤ āĻ•āϰāϤ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āϏāĻ‚āĻ–ā§āϝāĻžāĻ—āϤ āĻ āĻŋāĻ•āĻžāύāĻžāϕ⧇ ______ āĻ…ā§āϝāĻžāĻĄā§āϰ⧇āϏ āĻŦāϞāĻž āĻšāϝāĻŧāĨ¤
(The numerical address used to identify each device in a network is called an ______ address.)
85. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻ…āύāύ⧁āĻŽā§‹āĻĻāĻŋāϤ āĻ…ā§āϝāĻžāĻ•ā§āϏ⧇āϏ āϰ⧋āϧ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ ______ āύāĻžāĻŽāĻ• āϏāĻŋāĻ¸ā§āĻŸā§‡āĻŽ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(To prevent unauthorized access in a network, a system called a ______ is used.)
86. āĻ…āĻĢāĻŋāϏ āĻŦāĻž āĻŦāĻžāĻĄāĻŧāĻŋāϤ⧇ āĻ“āϝāĻŧā§āϝāĻžāϰāϞ⧇āϏ āχāĻ¨ā§āϟāĻžāϰāύ⧇āϟ āϏāĻŋāĻ—āĻ¨ā§āϝāĻžāϞ āĻĻ⧇āĻ“āϝāĻŧāĻžāϰ āϜāĻ¨ā§āϝ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ āϰāĻžāωāϟāĻžāϰ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(For providing wireless internet signal at office or home, a ______ router is generally used.)
87. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻĄā§‡āϟāĻž āĻŸā§āϰāĻžāĻ¨ā§āϏāĻĢāĻžāϰ āĻ•ā§āώāĻŽāϤāĻžāϕ⧇ āϏāĻžāϧāĻžāϰāĻŖāϤ ______ (Mbps) āĻāĻ•āϕ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤
(Data transfer capacity in a network is usually expressed in ______ (Mbps) units.)
88. āύāĻŋāϰāĻžāĻĒāĻĻ āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻŋāĻ‚-āĻāϰ āϜāĻ¨ā§āϝ āĻļāĻ•ā§āϤāĻŋāĻļāĻžāϞ⧀ ______ āĻ“ āύāĻŋāϝāĻŧāĻŽāĻŋāϤ āφāĻĒāĻĄā§‡āϟ āĻ•āϰāĻž āĻ…ā§āϝāĻžāĻ¨ā§āϟāĻŋāĻ­āĻžāχāϰāĻžāϏ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āϜāϰ⧁āϰāĻŋāĨ¤
(For safe computing, strong ______ and regularly updated antivirus are essential.)
89. āϕ⧇āĻŽāĻŋāĻ•ā§āϝāĻžāϞ⧇āϰ āύāĻŋāϰāĻžāĻĒāĻĻ āĻŦā§āϝāĻŦāĻšāĻžāϰ, āϏāĻ‚āϰāĻ•ā§āώāĻŖ āĻ“ āĻŦāĻŋāĻĒāĻĻ⧇āϰ āĻŦāĻŋāĻŦāϰāĻŖ āϜāĻžāύāĻžāϰ āϜāĻ¨ā§āϝ ______ āĻļāĻŋāϟ āĻĻ⧇āĻ–āĻž āĻšāϝāĻŧāĨ¤
(To know safe use, storage and hazards of a chemical, the ______ sheet is referred to.)
90. āĻĻā§€āĻ°ā§āϘ āϏāĻŽāϝāĻŧ āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻžāϰ⧇āϰ āϏāĻžāĻŽāύ⧇ āĻŦāϏ⧇ āĻ•āĻžāϜ āĻ•āϰāϞ⧇ āϏāĻ āĻŋāĻ• āĻ­āĻ™ā§āĻ—āĻŋ āĻŦāϜāĻžāϝāĻŧ āϰāĻžāĻ–āĻž āĻ“ āĻŽāĻžāĻā§‡ āĻŽāĻžāĻā§‡ ______ āύ⧇āĻ“āϝāĻŧāĻž āĻĻāϰāĻ•āĻžāϰāĨ¤
(While working long hours at a computer, proper posture and periodic ______ are necessary.)

Unit 5: Health & Safety Measures and Networking – True/False (10 × 1 = 10)

91. āĻĢāĻžāχāĻŦāĻžāϰ⧇āϰ āϛ⧋āϟ āϟ⧁āĻ•āϰāĻž āĻ—āĻžāϝāĻŧ⧇ āĻŦāĻž āĻšā§‹āϖ⧇ āĻĸ⧁āĻ•āϞ⧇ āϕ⧋āύ⧋ āĻ¸ā§āĻŦāĻžāĻ¸ā§āĻĨā§āϝ āĻā§āρāĻ•āĻŋ āĻĨāĻžāϕ⧇ āύāĻžāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Small fiber splinters in skin or eyes pose no health risk. (True / False))
92. āϰāĻžāĻ¸ā§āϤāĻžāϰ āϧāĻžāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϏāϤāĻ°ā§āĻ•āĻŦāĻžāĻ°ā§āϤāĻž āĻŦā§‹āĻ°ā§āĻĄ āĻ“ āϏ⧇āĻĢāϟāĻŋ āĻ•āύ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāϞ⧇ āĻĻ⧁āĻ°ā§āϘāϟāύāĻžāϰ āϏāĻŽā§āĻ­āĻžāĻŦāύāĻž āĻ•āĻŽā§‡āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Using warning boards and safety cones while working near roads reduces the chance of accidents. (True / False))
93. āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āϏāĻžāĻ°ā§āĻ­āĻžāϰ āĻ•ā§āϞāĻžāϝāĻŧ⧇āĻ¨ā§āϟ āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻžāϰāϗ⧁āϞāĻŋāϕ⧇ āĻŦāĻŋāĻ­āĻŋāĻ¨ā§āύ āϏ⧇āĻŦāĻž āĻ“ āĻĄā§‡āϟāĻž āĻĒā§āϰāĻĻāĻžāύ āĻ•āϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(In a network, a server provides various services and data to client computers. (True / False))
94. āĻāĻ•āχ āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ āϏāĻŦ āϜāĻžāϝāĻŧāĻ—āĻžāϝāĻŧ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰāĻž āĻĄā§‡āϟāĻž āϏāĻŋāĻ•āĻŋāωāϰāĻŋāϟāĻŋāϰ āϜāĻ¨ā§āϝ āϖ⧁āĻŦ āύāĻŋāϰāĻžāĻĒāĻĻ āĻĒāĻĻā§āϧāϤāĻŋāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Using the same password everywhere is a very safe method for data security. (True / False))
95. “āĻĢāĻŋāĻļāĻŋāĻ‚â€ āφāĻ•ā§āϰāĻŽāϪ⧇ āϭ⧁āϝāĻŧāĻž āχāĻŽā§‡āχāϞ āĻŦāĻž āĻ“āϝāĻŧ⧇āĻŦāϏāĻžāχāϟ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āĻŽāĻžāύ⧁āώ⧇āϰ āĻŦā§āϝāĻ•ā§āϤāĻŋāĻ—āϤ āϤāĻĨā§āϝ āϏāĻ‚āĻ—ā§āϰāĻš āĻ•āϰāĻž āĻšāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(In a phishing attack, fake emails or websites are used to steal personal information. (True / False))
96. āĻ…āĻĢāĻŋāϏ⧇ āĻ˛ā§āϝāĻžāύ āϕ⧇āĻŦāϞ āĻŽā§‡āĻā§‡āϤ⧇ āĻāϞ⧋āĻŽā§‡āϞ⧋āĻ­āĻžāĻŦ⧇ āĻ›āĻĄāĻŧāĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āϞ⧇ āĻŸā§āϰāĻŋāĻĒ āĻšā§āϝāĻžāϜāĻžāĻ°ā§āĻĄ āĻŦāĻžāĻĄāĻŧ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(Leaving LAN cables scattered loosely on the floor increases trip hazards. (True / False))
97. “āĻŦā§āϝāĻžāĻŖā§āĻĄāωāχāĻĨ” āϝāϤ āĻŦ⧇āĻļāĻŋ, āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āϤāϤ āĻŦ⧇āĻļāĻŋ āĻĄā§‡āϟāĻž āĻĒā§āϰāϤāĻŋ āϏ⧇āϕ⧇āĻ¨ā§āĻĄā§‡ āĻĒāĻžāĻ āĻžāύ⧋ āϝāĻžāϝāĻŧāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(The higher the bandwidth, the more data can be sent per second in a network. (True / False))
98. āĻĢāĻžāϝāĻŧāĻžāϰāĻ“āϝāĻŧāĻžāϞ āύ⧇āϟāĻ“āϝāĻŧāĻžāĻ°ā§āϕ⧇ āĻ…āύāύ⧁āĻŽā§‹āĻĻāĻŋāϤ āĻŸā§āϰāĻžāĻĢāĻŋāĻ• āĻĢāĻŋāĻ˛ā§āϟāĻžāϰ āĻ•āϰāϤ⧇ āϏāĻžāĻšāĻžāĻ¯ā§āϝ āĻ•āϰ⧇āĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(A firewall helps to filter unauthorized traffic in a network. (True / False))
99. āφāϗ⧁āύ āϞāĻžāĻ—āϞ⧇ āĻĒā§āϰāĻĨāĻŽ āĻ•āĻžāϜ āĻšāĻšā§āϛ⧇ āĻāϞāĻžāĻ°ā§āĻŽ āĻŦāĻžāϜāĻžāύ⧋ āĻ“ āϏāĻŦāĻžāχāϕ⧇ āύāĻŋāϰāĻžāĻĒāĻĻ āĻ¸ā§āĻĨāĻžāύ⧇ āύāĻŋāϝāĻŧ⧇ āϝāĻžāĻ“āϝāĻŧāĻžāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(In case of fire, the first step is to raise an alarm and move everyone to a safe place. (True / False))
100. āĻĻā§€āĻ°ā§āϘ āϏāĻŽāϝāĻŧ āĻ•āĻŽā§āĻĒāĻŋāωāϟāĻžāϰ⧇ āĻ•āĻžāϜ āĻ•āϰāĻžāϰ āϏāĻŽāϝāĻŧ āϕ⧋āύ⧋ āĻŦāĻŋāϰāϤāĻŋ āύāĻž āύ⧇āĻ“āϝāĻŧāĻž āĻāϰāĻ—ā§‹āύāĻŽāĻŋāĻ• āĻĻāĻŋāĻ• āĻĨ⧇āϕ⧇ āĻ­āĻžāϞ⧋ āĻ…āĻ­ā§āϝāĻžāϏāĨ¤ (āϏāĻ¤ā§āϝ / āĻŽāĻŋāĻĨā§āϝāĻž)
(When working long hours on a computer, taking no breaks is good ergonomic practice. (True / False))

Answer Key – Fill in the Blanks (Q1–10, 21–30, 41–50, 61–70, 81–90)

Unit 1 – Fill in the Blanks

1. āĻ•āĻžāρāϚ (Glass)
2. āĻœā§āϝāĻžāϕ⧇āϟ / āĻļā§€āĻĨ (Jacket / Sheath)
3. āφāϞ⧋ (Light)
4. āĻ…āĻĒāϟāĻŋāĻ•ā§āϝāĻžāϞ āĻŸā§āϰāĻžāĻ¨ā§āϏāĻŽāĻŋāϟāĻžāϰ / āĻŸā§āϰāĻžāĻ¨ā§āϏāĻŽāĻŋāϟāĻžāϰ (Optical transmitter / transmitter)
5. Total (āĻĒā§‚āĻ°ā§āĻŖ) internal reflection
6. Single (āϏāĻŋāĻ™ā§āϗ⧇āϞ)
7. dB (āĻĄā§‡āϏāĻŋāĻŦ⧇āϞ) / dB per km
8. 1550 āĻ¨ā§āϝāĻžāύ⧋āĻŽāĻŋāϟāĻžāϰ (1550 nm)
9. āϰ⧁āϟ (Route) āĻŽā§āϝāĻžāĻĒ / āϕ⧇āĻŦāϞ āϰ⧁āϟ āĻŽā§āϝāĻžāĻĒ
10. āĻĄā§‡āĻžā§āϜāĻžāϰ / āĻ“āϝāĻŧāĻžāĻ°ā§āύāĻŋāĻ‚ āĻŸā§‡āĻĒ (Danger / warning tape)

Unit 2 – Fill in the Blanks

21. āĻĢāĻŋāωāĻļāύ (Fusion)
22. āĻĢāĻžāχāĻŦāĻžāϰ (Fiber) āĻ¸ā§āĻŸā§āϰāĻŋāĻĒāĻžāϰ
23. āĻ•ā§āϞāĻŋāĻ­āĻžāϰ (Cleaver)
24. āĻĒā§āϰ⧋āĻŸā§‡āĻ•āĻļāύ (Protection) āĻ¸ā§āϞāĻŋāĻ­ / āĻšāĻŋāϟ-āĻļā§āϰāĻŋāĻ‚āĻ• āĻ¸ā§āϞāĻŋāĻ­
25. āĻ…ā§āϝāĻžāϞāĻžāχāύāĻŽā§‡āĻ¨ā§āϟ (Alignment) āĻŦā§āϞāĻ• / āĻ¸ā§āϞāĻŋāĻ­
26. āφāχāϏ⧋āĻĒā§āϰ⧋āĻĒāĻžāχāϞ (Isopropyl) āĻ…ā§āϝāĻžāϞāϕ⧋āĻšāϞ
27. āĻŽāĻžāϏ (Mass) / āϰāĻŋāĻŦāύ (Ribbon) āĻ¸ā§āĻĒā§āϞāĻžāχāϏāĻŋāĻ‚
28. āĻ¸ā§āĻĒā§āϞāĻžāχāϏ (Splice) āĻŸā§āϰ⧇
29. āϞāĻ— (Log) / āϞāĻ— āĻļāĻŋāϟ (Log sheet)
30. āϏāĻžāĻ°ā§āĻ­āĻŋāϏ (Service) āϞ⧁āĻĒ

Unit 3 – Fill in the Blanks

41. āĻŦāĻžāϞāĻŋ / āύāϰāĻŽ āĻŦāĻžāϞāĻŋ (Sand / soft sand)
42. āϞ⧁āĻŦā§āϰāĻŋāϕ⧇āĻ¨ā§āϟ (Lubricant)
43. As-built (āĻ…ā§āϝāĻžāϜ-āĻŦāĻŋāĻ˛ā§āϟ)
44. āϞ⧇āĻ‚āĻĨ (Length) āĻŽāĻžāĻ°ā§āĻ•āĻŋāĻ‚ / āĻ•āĻžāϟāĻŋāĻ‚ āϞ⧇āĻ‚āĻĨ āĻŽāĻžāĻ°ā§āĻ•āĻŋāĻ‚
45. āϰāĻžāχāϜāĻžāϰ (Riser) / āϕ⧇āĻŦāϞ āϰāĻžāχāϜāĻžāϰ
46. ADSS (All-Dielectric Self-Supporting)
47. āĻāϝāĻŧāĻžāϰāĻŋāϝāĻŧāĻžāϞ (Aerial) / āĻ“āĻ­āĻžāϰāĻšā§‡āĻĄ āχāύāĻ¸ā§āϟāϞ⧇āĻļāύ
48. āĻĄā§‡āĻžā§āϜāĻžāϰ / āĻ“āϝāĻŧāĻžāĻ°ā§āύāĻŋāĻ‚ āĻŸā§‡āĻĒ (Danger / warning tape)
49. āϏāĻžāĻ°ā§āĻ­āĻŋāϏ (Service) āϞ⧁āĻĒ
50. Right-of-way (āϰāĻžāχāϟ-of-way)

Unit 4 – Fill in the Blanks

61. āĻĒāĻžāĻ“āϝāĻŧāĻžāϰ (Power) āĻŽāĻŋāϟāĻžāϰ
62. Domain (āĻĄā§‹āĻŽā§‡āχāύ)
63. āϞāĻžā§āϚ (Launch) āĻĢāĻžāχāĻŦāĻžāϰ
64. āϰāĻŋāϏāĻŋāĻ­ (Receive) āĻĢāĻžāχāĻŦāĻžāϰ
65. dBm
66. OTDR (āĻ“āϟāĻŋāĻĄāĻŋāφāϰ)
67. āϰ⧇āĻĢāĻžāϰ⧇āĻ¨ā§āϏ / āĻ­āĻžāϞ⧋ (good) āϞāĻŋāĻ™ā§āĻ•
68. āĻ­āĻŋāϜ⧁āϝāĻŧāĻžāϞ āĻĢāĻ˛ā§āϟ āϞ⧋āϕ⧇āϟāϰ (Visual Fault Locator)
69. āĻ¸ā§āĻŸā§‹āϰ⧇āϜ (Storage) / āϏ⧇āĻ­ (Save)
70. Pass (āĻĒāĻžāϏ)

Unit 5 – Fill in the Blanks

81. āϏ⧇āĻĢāϟāĻŋ (Safety) āĻ—āĻ—āϞāϏ
82. āĻ—ā§āϝāĻžāϏ / āĻŦāĻžāϝāĻŧ⧁ (Gas / air) āĻŸā§‡āĻ¸ā§āϟ
83. āϏ⧇āĻĢāϟāĻŋ (Safety) āĻšāĻžāϰāύ⧇āϏ
84. IP (āφāχāĻĒāĻŋ) āĻ…ā§āϝāĻžāĻĄā§āϰ⧇āϏ
85. āĻĢāĻžāϝāĻŧāĻžāϰāĻ“āϝāĻŧāĻžāϞ (Firewall)
86. āĻ“āϝāĻŧāĻžāχ-āĻĢāĻžāχ (Wi-Fi) / āĻ“āϝāĻŧāĻžāϰāϞ⧇āϏ āϰāĻžāωāϟāĻžāϰ
87. āĻŽā§‡āĻ—āĻžāĻŦāĻŋāϟāϏ āĻĒāĻžāϰ āϏ⧇āϕ⧇āĻ¨ā§āĻĄ (Megabits per second)
88. āĻĒāĻžāϏāĻ“āϝāĻŧāĻžāĻ°ā§āĻĄ (Password)
89. MSDS (Material Safety Data Sheet)
90. āĻŦāĻŋāϰāϤāĻŋ (Breaks)

Answer Key – True/False (Q11–20, 31–40, 51–60, 71–80, 91–100)

Unit 1 – True/False

11. āĻŽāĻŋāĻĨā§āϝāĻž (False)
12. āϏāĻ¤ā§āϝ (True)
13. āϏāĻ¤ā§āϝ (True)
14. āĻŽāĻŋāĻĨā§āϝāĻž (False)
15. āϏāĻ¤ā§āϝ (True)
16. āϏāĻ¤ā§āϝ (True)
17. āĻŽāĻŋāĻĨā§āϝāĻž (False)
18. āϏāĻ¤ā§āϝ (True)
19. āϏāĻ¤ā§āϝ (True)
20. āĻŽāĻŋāĻĨā§āϝāĻž (False)

Unit 2 – True/False

31. āϏāĻ¤ā§āϝ (True)
32. āĻŽāĻŋāĻĨā§āϝāĻž (False)
33. āĻŽāĻŋāĻĨā§āϝāĻž (False)
34. āĻŽāĻŋāĻĨā§āϝāĻž (False)
35. āϏāĻ¤ā§āϝ (True)
36. āϏāĻ¤ā§āϝ (True)
37. āĻŽāĻŋāĻĨā§āϝāĻž (False)
38. āϏāĻ¤ā§āϝ (True)
39. āϏāĻ¤ā§āϝ (True)
40. āĻŽāĻŋāĻĨā§āϝāĻž (False)

Unit 3 – True/False

51. āĻŽāĻŋāĻĨā§āϝāĻž (False)
52. āϏāĻ¤ā§āϝ (True)
53. āϏāĻ¤ā§āϝ (True)
54. āϏāĻ¤ā§āϝ (True)
55. āϏāĻ¤ā§āϝ (True)
56. āĻŽāĻŋāĻĨā§āϝāĻž (False)
57. āϏāĻ¤ā§āϝ (True)
58. āϏāĻ¤ā§āϝ (True)
59. āĻŽāĻŋāĻĨā§āϝāĻž (False)
60. āϏāĻ¤ā§āϝ (True)

Unit 4 – True/False

71. āĻŽāĻŋāĻĨā§āϝāĻž (False)
72. āϏāĻ¤ā§āϝ (True)
73. āϏāĻ¤ā§āϝ (True)
74. āĻŽāĻŋāĻĨā§āϝāĻž (False)
75. āϏāĻ¤ā§āϝ (True)
76. āϏāĻ¤ā§āϝ (True)
77. āϏāĻ¤ā§āϝ (True)
78. āĻŽāĻŋāĻĨā§āϝāĻž (False)
79. āϏāĻ¤ā§āϝ (True)
80. āĻŽāĻŋāĻĨā§āϝāĻž (False)

Unit 5 – True/False

91. āĻŽāĻŋāĻĨā§āϝāĻž (False)
92. āϏāĻ¤ā§āϝ (True)
93. āϏāĻ¤ā§āϝ (True)
94. āĻŽāĻŋāĻĨā§āϝāĻž (False)
95. āϏāĻ¤ā§āϝ (True)
96. āϏāĻ¤ā§āϝ (True)
97. āϏāĻ¤ā§āϝ (True)
98. āϏāĻ¤ā§āϝ (True)
99. āϏāĻ¤ā§āϝ (True)
100. āĻŽāĻŋāĻĨā§āϝāĻž (False)

  • optical fiber splicing questions and answers
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  • OFC cable laying and installation MCQ
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Optical Fiber Splicer QA | Class 10 MCQ, OFC, Splicing, Testing & Safety

Class 10 Optical Fiber Splicer QA set with MCQs on fiber optic communication, splicing tools, OFC installation, OTDR testing, health & safety and basic networking.

Made by Biswarup Santra( M.Tech in ECE)

for Class 9 questions and Answers click Here

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