RRB NTPC 2021-03-02-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-03-02-2021-2 RRB Questions

11.
Which type of mirror is used by dentists to see large images of patients' teeth?
A.
Convex mirror
B.
Concave mirror
C.
Spherical mirror
D.
Spherical and Convex mirror
😑 View Answer Rough Work
ANSWER :
B. Concave mirror
12.
Which other two countries were at the top in the world to possess an anti-satellite weapon system in 2010 when China became the third country?
A.
The USA and Germany
B.
The USA and India
C.
Germany and Russia
D.
The USA and Russia
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ANSWER :
D. The USA and Russia
13.
What will be the value of the following expression?
0.25 ÷ 0.0025 × 0.025 × 25
A.
625
B.
62.5
C.
0.625
D.
6.25
😑 View Answer Rough Work
ANSWER :
B. 62.5
14.
An amount doubles itself at compound interest in five years. In how many years will it amount to sixteen times itself?
A.
25
B.
15
C.
16
D.
20
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ANSWER :
D. 20
15.
The blue colour of the sky is due to the:
A.
dispersion of light
B.
scattering of light
C.
refraction of light
D.
diffraction of light
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ANSWER :
B. scattering of light
16.
The population of a town is 10,000. If the male population increases by 5% and the female population by 10%, the population will become 10,800. How much of the town's present population is female?
A.
5000
B.
8000
C.
6000
D.
7000
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ANSWER :
C. 6000
17.
The third Buddhist Council was held by:
A.
Chandragupta
B.
Kanishka
C.
Ashoka
D.
Harshvardhana
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ANSWER :
C. Ashoka
18.
Read the given statement and conclusions carefully and decide which of the conclusions logically follow(s) from the statement. Statement: Music is very good for peace of mind.
Conclusions:
I. Arijit Singh has a good voice.
II. Kishor Kumar was a famous singer.
A.
Neither of the conclusion follows.
B.
Only conclusion II follows.
C.
Only conclusion I follows.
D.
Both conclusions follow.
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ANSWER :
A. Neither of the conclusion follows.
19.
Find the quotient of 0.5 ÷ 0.71 (correct to three decimal places)
A.
0.714
B.
0.706
C.
0.704
D.
0.705
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ANSWER :
C. 0.704
20.
The annual increase in percentage of a population is 5% and the present number of people is 16,000. What will be the population in three years?
A.
29,448
B.
24,448
C.
18,522
D.
20,448
😑 View Answer Rough Work
ANSWER :
C. 18,522