RRB Group D 2018-19-9-2018-2 RRB Question Paper

RRB Group D 2018 Question Papers

RRB Group D 2018-19-9-2018-2 RRB Questions

21.
Why does a stone thrown up into the sky fall back to the earth?
A.
Work done by the object pulls it down towards the Earth
B.
There exists a centripetal force that pulls it down towards the Earth.
C.
There is a downward pressure that pulls it down towards the Earth.
D.
There exists a force that pulls it down towards the Earth.
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ANSWER :
D. There exists a force that pulls it down towards the Earth.
22.
A car is moving with a high speed. Which energy does it possess?
A.
Potential energy
B.
Frictional force
C.
Gravitational force
D.
Kinetic energy
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ANSWER :
D. Kinetic energy
23.
When did the British make English the medium of instruction in India?
A.
1835
B.
1834
C.
1836
D.
1833
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ANSWER :
A. 1835
24.
Find the next term in the below series: 3E, 9G, 27I, ______
A.
80 K
B.
81 L
C.
80 L
D.
81 K
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ANSWER :
D. 81 K
25.
Which of the following correctly corresponds the realtionship between
A) Woolen Sweater
B)Cotton
C)Wool
A.
B.
C.
D.
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ANSWER :
D. undefined
26.
___ is used as a fuel in cars with petrol.
A.
Ethanol
B.
Alcohol
C.
Benzene
D.
Butane
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ANSWER :
A. Ethanol
27.
Three identical resistors, each of 6 Ω, are connected in parallel. The equivalent resistance of the combination is:
A.
6 Ω
B.
18 Ω
C.
2 Ω
D.
3 Ω
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ANSWER :
C. 2 Ω
28.
Solder is an alloy of ___.
A.
Cu and Sn
B.
Ni, Cu and Zn
C.
Cu and Zn
D.
Pb and Sn
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ANSWER :
D. Pb and Sn
29.
Pratyay bought a set of cups for Rs 195, but then had to sell it later to clear old stocks for ₹171.6. What is the percentage of loss that he had to bear?
A.
12
B.
14
C.
13
D.
15
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ANSWER :
A. 12
30.
A and B can complete a task together in 15 days, while A alone can complete it in 18.75 days. They start working together but A leaves 12.5 days before the completion of the work. For how many days did A and B work together?
A.
10
B.
13.75
C.
12.5
D.
11.25
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ANSWER :
C. 12.5