RRB NTPC 2021-12-02-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers
RRB NTPC 2021-12-02-2021-1

RRB NTPC 2021-12-02-2021-1 RRB Questions

21.
Where does the Brahmaputra river originate?
A.
Gangotri
B.
Gaumukh
C.
Tso Lhamo Lake
D.
Lake Manasarovar
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ANSWER :
D. Lake Manasarovar
22.

A, B and C can complete a task in 10, 15 and 18 days respectively. In how many days will all of them complete the same task working together?

A.

2

B.

\( \frac{9}{2} \)

C.

9

D.

5 \( \frac{1}{2} \)

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ANSWER :

B. \( \frac{9}{2} \)

23.

Assuming A = 1, B = 2 and so on … Z = 26, find the value of the following expression.
\( \left(I^{2} - C^{2} \times \frac{P}{R}\right) + 8 \)

A.

90

B.

73

C.

81

D.

78

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ANSWER :

C. 81

24.
Tap A can fill a tank in 40 min and Tap B can empty the tank in 60 min. If the taps are opened at the same time, then the time taken to fill the tank will be:
A.
120 min
B.
100 min
C.
125 min
D.
150 min
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ANSWER :
A. 120 min
25.
If a person has difficulty in seeing distant objects clearly, what condition is he suffering from and how can it be corrected?
A.
Myopia, using concave lens
B.
Myopia, using convex lens
C.
Hypermetropia, using convex lens
D.
Hypermetropia, using concave lens
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ANSWER :
A. Myopia, using concave lens
26.
Let 30 cm and 18 cm be the lengths of the two parallel sides of a trapezium and 24 cm be distance between these two sides. If the area of this trapezium is equal to the area of a square, then the perimeter of the square will be:
A.
87 cm
B.
66 cm
C.
96 cm
D.
75 cm
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ANSWER :
C. 96 cm
27.
Plants having no vascular system are known as:
A.
bryophytes
B.
pteridophytes
C.
tracheophytes
D.
gametophytes
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ANSWER :
A. bryophytes
28.
Who was awarded the Padma Vibhushan in the field of Art-Acting-Theatre for the year 2019?
A.
Balwant Moreshwar Purandare
B.
Manoj Bajpai
C.
Dinyar Contractor
D.
Mohanlal Viswanathan Nair
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ANSWER :
A. Balwant Moreshwar Purandare
29.
A single-celled fertilised egg is called a/an:
A.
blastocyte
B.
embryo
C.
foetus
D.
zygote
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ANSWER :
D. zygote
30.

What will be the value of θ if
\(\sqrt{3}\) tan 2θ - 3 = 0?

A.

40°

B.

90°

C.

30°

D.

60°

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ANSWER :

C. 30°

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