RRB NTPC 2021-17-01-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-17-01-2021-2 RRB Questions

1.
The smallest positive number which must be added to the greatest number of 4 digits in order that the sum may be exactly divisible by 307 is:
A.
306
B.
176
C.
132
D.
307
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ANSWER :
C. 132
2.

If Cos⁴θ - sin⁴θ = \( \frac{2}{3} \) then the value of 1 - 2sin²θ is:

A.

\( \frac{5}{3} \)

B.

-1

C.

0

D.

\( \frac{2}{3} \)

😑 View Answer Rough Work
ANSWER :

D. \( \frac{2}{3} \)

3.
Being light and non-inflammable, ______ gas is used to blow balloons.
A.
Chlorine
B.
Neon
C.
Oxygen
D.
Helium
😑 View Answer Rough Work
ANSWER :
D. Helium
4.
Which is the correct full form of IPBES from below?
A.
International Policy of Biodiversity and Ecosystem Services
B.
Intergovernmental Platform on Biodiversity and Ecosystem Services
C.
Intergovernmental Science Policy Platform on Biodiversity and Ecosystem Services
D.
International Programme of Biodiversity and Ecosystem Sciences
😑 View Answer Rough Work
ANSWER :
C. Intergovernmental Science Policy Platform on Biodiversity and Ecosystem Services
5.
Sarita buys two old Samsung and three Mi mobile phones for ₹40,200. If she sells the Samsung phones at a 10% profit and the Mi phones at a 20% profit then her total profit is ₹5,640. The cost price of the Mi phone is:
A.
₹5,000
B.
₹4,400
C.
₹5,400
D.
₹1,200
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ANSWER :
C. ₹5,400
6.
From the given options, select the one in which the following are arranged in the most meaningful order.
1. Cosmos 2. Earth 3. Milky Way 4. Human
A.
1, 2, 3, 4
B.
1, 3, 4, 2
C.
1, 3, 2, 4
D.
1, 2, 4, 3
😑 View Answer Rough Work
ANSWER :
C. 1, 3, 2, 4
7.
Find the smallest perfect square number which must be added to the number 12519 to get a perfect square number.
A.
9
B.
16
C.
20
D.
25
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ANSWER :
D. 25
8.
A sum of money doubles itself at a compound interest in 15 years. In how many years will it become 8 times the original amount?
A.
58 years
B.
45 years
C.
40 years
D.
52 years
😑 View Answer Rough Work
ANSWER :
B. 45 years
9.
When was the Anandpur Sahib Resolution passed?
A.
1975
B.
1970
C.
1973
D.
1980
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ANSWER :
C. 1973
10.
Which of the following missile systems are offered by the US to India as an alternative to Russian S-400s?
A.
ARROW-2
B.
THAAD and PAC-3
C.
M-11
D.
S-300
😑 View Answer Rough Work
ANSWER :
B. THAAD and PAC-3