RRB NTPC 2021-10-02-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-10-02-2021-2 RRB Questions

11.
Which of the following is not a beneficial insect?
A.
Lac insect
B.
Silk moth
C.
Termite
D.
Honey bee
😑 View Answer Rough Work
ANSWER :
C. Termite
12.

If the side of a square is \( \frac{1}{10} \) m, then how many such squares will get accommodated in a bigger square of side 4 m?

A.

1650

B.

1500

C.

1200

D.

1600

😑 View Answer Rough Work
ANSWER :

D. 1600

13.
A man travelled from a village to a post-office at a speed of 25 km/h and walked back at a speed of 4 km/h. If the whole journey took 5 hours 48 minutes, then the distance of the post-office from the village is:
A.
40 m
B.
20 m
C.
20 km
D.
40 km
😑 View Answer Rough Work
ANSWER :
C. 20 km
14.
Name the pigment that gives plants their green color.
A.
Thiamin
B.
Carotenoid
C.
Actin
D.
Chlorophyll
😑 View Answer Rough Work
ANSWER :
D. Chlorophyll
15.
A, B and C all start their journey from the same place and all three follow the same route. However, A travels at a speed of 60 km/h, B at a speed of 75 km/h and C at a speed of 80 km/h. Also, A starts the journey five hours before B does. If B and C both overtake A at the same instance while travelling, how much time after A did C start the journey?
A.
6 hours 25 minutes
B.
6 hours 12 minutes
C.
6 hours 15 minutes
D.
6 hours 30 minutes
😑 View Answer Rough Work
ANSWER :
C. 6 hours 15 minutes
16.
The sum of half, one-third and one-fifth of a number exceeds the number by 12. What is the number?
A.
122
B.
444
C.
360
D.
144
😑 View Answer Rough Work
ANSWER :
C. 360
17.

A student multiplied a number by \( \frac{3}{5} \) instead of \( \frac{5}{3} \). What is the percentage error in the calculation?

A.

46%

B.

10%

C.

64%

D.

20%

😑 View Answer Rough Work
ANSWER :

C. 64%

18.
At which of the following railway stations of South Africa was Gandhiji thrown out of a train after refusing to leave the first-class compartment?
A.
Johannesburg
B.
Cape Town
C.
Pietermaritzburg
D.
Durban
😑 View Answer Rough Work
ANSWER :
C. Pietermaritzburg
19.
There are 2401 students in a school. The PT teacher wants all of them to stand in rows and columns. Find the number of rows, if the number of rows is equal to the number of columns.
A.
29
B.
39
C.
49
D.
19
😑 View Answer Rough Work
ANSWER :
C. 49
20.

The radius of the circle in which a central angle of 60° intercepts an arc of length 35 cm is:

A.

\(\frac{105}{\pi}\) cm

B.

\(\frac{35}{\pi}\) cm

C.

\(\frac{100}{\pi}\) cm

D.

35π cm

😑 View Answer Rough Work
ANSWER :

A. \(\frac{105}{\pi}\) cm