RRB NTPC 2021-22-01-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-22-01-2021-2 RRB Questions

31.

What is the value of \(\frac{1-\tan^2A}{1+\tan^2A}\) ?

A.

cos 2A

B.

cos²A

C.

sin 2A

D.

1

😑 View Answer Rough Work
ANSWER :

A. cos 2A

32.
Area of a square is equal to ten times the area of a rectangle of edge 5 cm × 8 cm. What is the perimeter of the square?
A.
120 cm
B.
80 cm
C.
60 cm
D.
40 cm
😑 View Answer Rough Work
ANSWER :
B. 80 cm
33.

To complete a task, A and B take 24 days, B and C take 12 days and A, B and C take 6 days. A and C will take:

A.

\( \frac{24}{5} \) days

B.

2 days

C.

4 days

D.

24 days

😑 View Answer Rough Work
ANSWER :

A. \( \frac{24}{5} \) days

34.
The secret code for 'TREE GOES UNDER THE FLOOR MAT' is 'ASEE JKEZ VMCES ATE DRKKS NQA'. What will the code for 'DRAGON' be?
A.
JSQCMN
B.
BSQJKM
C.
CSOVRE
D.
CSQJKM
😑 View Answer Rough Work
ANSWER :
D. CSQJKM
35.
How many prime numbers are there that are less than 50?
A.
16
B.
13
C.
15
D.
14
😑 View Answer Rough Work
ANSWER :
C. 15
36.
If 20% of 160 + 10% of 50 = x - 1, then what will be the value of x?
A.
19
B.
-38
C.
38
D.
36
😑 View Answer Rough Work
ANSWER :
C. 38
37.
Bardo Chham is folk dance of :
A.
Uttarakhand
B.
Sikkim
C.
Arunachal Pradesh
D.
West Bengal
😑 View Answer Rough Work
ANSWER :
C. Arunachal Pradesh
38.
Name the Governor–General under whom a new policy of 'paramountcy' was initiated.
A.
Lord Wellesley
B.
Lord Hasting
C.
Lord Cornwallis
D.
Lord Dalhousie
😑 View Answer Rough Work
ANSWER :
B. Lord Hasting
39.
In which of the following cities was India's first bio-refinery plant inaugurated?
A.
Pune
B.
Valsad
C.
Ahmedabad
D.
Hyderabad
😑 View Answer Rough Work
ANSWER :
A. Pune
40.
Read the given statement and conclusions carefully and decide which of the conclusions logically follow(s) from the statement.
Statement:
The book 'P' emphasizes only on population of India and its related problems during 2001-2015.
Conclusions:
I. Increasing population is the biggest problem in India.
II. The book is the only book which deals with the problem of population in India.
A.
Only conclusion II follows
B.
Neither I nor II conclusion follows
C.
Only conclusion I follows
D.
Both I and II conclusion follow
😑 View Answer Rough Work
ANSWER :
B. Neither I nor II conclusion follows