RRB JUNIOR ENGINEER

Railway Recruitment Boards junior Engineer 

RRB JUNIOR ENGINEER

Question partice set

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1. The HCF of two numbers is 15 and therir LCM is 210. If one numbers is 105, the other number is?

A) 15  B)30   C)45   D)75

Ans. 30

2. The least number which when divided by 10, 15 and 18 leaving remainder 5 in each case is?

A) 85   B)90   C)95   D)105

Ans. 95

3.  Compound interest on ₹8000 for 1yr at 10% per annum componded half yearly is?

A) 800   B)1680   C)840  D)820

Ans. 840

4.  A person cycle from one place to another in 100min. If his speed is 18km/h,the distance between two places is?

A) 20km   B)30km  C)15km  D)25km

Ans. 30km

5. The average of Frist six even whole number is?

A) 5  B)6   C)7   D)8

Ans. 5

6. Which statement is not true for a game of badminton?

A) Total points to be scored are 21

B) If both sides score upto game point,the winner needs two clear points in a row

C) The game never ends in a draw

D) Total points to be scored are 15

Ans. Total points to be scored are 15

 

7.  Paralympic is a multi-sport event involving those athletes who are?

A) only visually challenged   B) only hearing impaired   C) just mentally challenged   D)with range of physical disability

Ans. With range of physical disability

 

8.  The country called ‘ Land of the Rising sun’ is?

A) china B) Norway  C)Japan D)Sweden

Ans. Japan

9.  The term ‘ collegium system’ was recently seen in the newspapers. With which field is this term associated?

A) Education  B) Judiciary   C) Politics   D) Constitution

Ans. Judiciary 

10.  Which one out of the values  of the Indian constitution means’s having complete freedom and being  the supreme authority’s?

A) Socialism  B) Secularism  C) Sovereignty   D) Liberty

Ans. Sovereignty 

11. If you were to measure the strength of a current which instrument would you look for?

A) Volumeter   B) Thermometer  C) Ammeter   D) Barometer

Ans. Ammeter 

12. Another term for genetic engineering is ?

A) Recombiant DNA Technology  B)Polymerase chain Reaction  C)DNA Fingerprinting  D)DNA Typing

Ans. Recombiant DNA Technology

13. Of the slav population Scattered in Eastern Europe, those who began the pan slav Movement  to have one state were?

A) serbians   B) Bulgarians   C) Romanians   D) Polish

Ans. Serbians 

14.  Who built the pyramids ?

A) Pharaohs   B) Chinese C) Confucian  D) Romans

Ans. Pharohs 

15.  The king of Mauarya Empire who in 322 BC uprooted Greeks from Punjab and Nandas from the Gangetic plane was?

A) Chandragupta Maurya B)Bindusara   C) Ashoka D) Mahapadmananda

Ans. Chandragupta Maurya 

16. Out of two bottles of pickle, one old and one freshly  made, the old one can be detected by its smell and taste caused by ?

A) Oxidation of oil in the pickle making in rancid

B) Invasion of bacteria Causing  Putrefaction

C) Reduction in volume of oil in the pickle

D) Fermentation by yeast

Ans. Oxidation of oil in the pickle making it rancid

17. Hair dyes may contain the base ?

A) sodium Hydroxide   B) Ammonium Hydroxide  C) calcium Hydroxide  D) Potassium Hydroxide

Ans. Ammonium Hydroxide

18.  Give the term for ‘ price offer one Currency in terms of another’.

A) Effective exchange rate  B)Norminal exchange rate   C) Spot rate  D) Purchasing power Parity

Ans. Norminal exchange rate 

19. The terms of trade measure

A) Ratio of export prices and import  prices

B) sum of export prices and import  prices

C) Difference of export prices and import price

D) Product of export prices and import price

Ans. Ratio of export prices and import  prices

 

20. Pointing to a portrait, Suresh said ” His father is the husband of may father’s only daughter. ” How is the person in the portrait related to Suresh?

A) uncle  B) Nephew  C) Cousin  D) Brother

Ans. Uncle 

21.  The average weight of 100 students is 46kg. The average weight of girls is 40kg. If the number of girls is 40, the average weight of boys in kilograms

A) 40  B)45   C)50  D)60

Ans. 50

22. The common difference of an AP in which a18-a13= 45 is

A) -9    B)9   C) – 5   D) 5

Ans. 9

23. The 10th term of the Gp,3,1/3,…is

A)3-10   B) 3-9   C) 3-8  D)3 9

Ans. 3-8

24.  One factor of (49-x2 -1)

A) 7+x   B) 7-x   C)14x  D) 7x-1

Ans. 14x

 

25.  If a:b= 4:5 and b:c = 2:3, then c:a is

A) 15:8  B) 8:15  C)4:5  D)3:4

Ans. 15:8