RRB NTPC 2021-07-04-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-07-04-2021-1 RRB Questions

11.
Find the length of the tangent from any point on the circle x² + y² + 2011x + 2012y + 2013 = 0 to the circle x² + y² + 2011x + 2012y + 2014 = 0.
A.
5
B.
1
C.
0
D.
No common tangent can be drawn.
😑 View Answer Rough Work
ANSWER :
D. No common tangent can be drawn.
12.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:
Teachers make friends with only tall people.
Tandon is very tall.
Conclusions:
I. Tandon is friends with a teacher.
II. Tandon is not friends with a teacher.
A.
Either conclusion I or II follows.
B.
Only conclusion I follows.
C.
Both conclusions I and II follow.
D.
Only conclusion II follows.
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ANSWER :
A. Either conclusion I or II follows.
13.
A truck covers a distance of 92.5 km in 2.5 h. If the truck is travelling at the same speed throughout the journey, then what is the distance covered by it in 1 h?
A.
57 km
B.
67 km
C.
47 km
D.
37 km
😑 View Answer Rough Work
ANSWER :
D. 37 km
14.
What is the name of the Island where Nelson Mandela was imprisoned for 18 years of his total 27 years prison tenure?
A.
Greenland
B.
Robben Island
C.
Nuuk
D.
Cyprus
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ANSWER :
B. Robben Island
15.

If \( \frac{2}{5} \) + \( \frac{2}{10} \) = \(\frac{N+1}{N+5}\), then find the value of N. 

A.

5

B.

\( \frac{5}{9} \)

C.

9

D.

4

😑 View Answer Rough Work
ANSWER :

A. 5

16.
Find the smallest number, which when divided by 35, 40 and 60 leaves a remainder 7 in each case.
A.
893
B.
800
C.
847
D.
814
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ANSWER :
C. 847
17.
The number that should be subtracted from 510 and 270 to get 24 as the GCD is:
A.
16
B.
42
C.
24
D.
6
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ANSWER :
D. 6
18.
Identify the water-soluble vitamin from the following.
A.
Vitamin A
B.
Vitamin B1
C.
Vitamin D
D.
Vitamin E
😑 View Answer Rough Work
ANSWER :
B. Vitamin B1
19.
Which kingdom was called "a cherry" by Governor General Lord Dalhousie?
A.
Kingdom of Vijaynagara
B.
Kingdom of Gwalior
C.
Kingdom of Awadh
D.
Kingdom of Jhansi
😑 View Answer Rough Work
ANSWER :
C. Kingdom of Awadh
20.

If \(\frac{\pi}{2}\) < θ < \(\frac{3\pi}{2}\), then \(\sqrt{\frac{1-\sin\theta}{1+\sin\theta}}\) is:

A.

tanθ − secθ

B.

sinθ − secθ

C.

tanθ + secθ

D.

cosθ − secθ

😑 View Answer Rough Work
ANSWER :

A. tanθ − secθ