RRB NTPC 2021-16-01-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-16-01-2021-1 RRB Questions

41.
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest.
A.
19 : 361
B.
23 : 539
C.
28 : 784
D.
17 : 289
ANSWER :
B. 23 : 539
42.
Astrophysicist ______, who first theorized the existence of the solar wind in 1958, became the first living individual after which NASA named a Spacecraft.
A.
Eugene Parker
B.
Elon Musk
C.
Johannes Kepler
D.
Carl Sagan
ANSWER :
A. Eugene Parker
43.

In the given Δ KMN, PQ is parallel to MN. If \( \frac{KP}{PM} \) = \( \frac{4}{13} \) and KN = 20.4 cm, find KQ.

A.

8.2 cm

B.

4.8 cm

C.

5.1 cm

D.

3.6 cm

ANSWER :

B. 4.8 cm

44.
Find three numbers such that their ratio is 3 : 4 : 5 and their HCF is 7.
A.
12; 16; 20
B.
6; 8; 10
C.
21; 28; 35
D.
24; 32; 40
ANSWER :
C. 21; 28; 35
45.
If the polynomial 6x⁴ + 8x³ + 17x² + 21x + 7 is divided by another polynomial 3x² + 4x + 1, the remainder comes out to be ax + b, find a and b.
A.
a = 1; b = 1
B.
a = 3; b = 1
C.
a = 1; b = 2
D.
a = 1; b = 3
ANSWER :
C. a = 1; b = 2
46.
The International Court of Justice is located in ______.
A.
New York
B.
Austria
C.
The Hague
D.
Washington
ANSWER :
C. The Hague
47.
Which of the following numbers will completely divide (4⁢¹ + 4⁢² + 4⁢³ + 4⁢⁴)?
A.
10
B.
13
C.
11
D.
3
ANSWER :
A. 10
48.
Select the option that is related to the third number in the same way as the first number is related to the second number.
14 : 210 :: 16 : ?
A.
240
B.
212
C.
272
D.
256
ANSWER :
A. 240
49.
______ are a kind of waste disposal system of the cell. They help to keep the cell clean by digesting any foreign materials as well as worn-out cell organelles.
A.
Lysosomes
B.
Golgi
C.
Plastids
D.
Mitochondria
ANSWER :
A. Lysosomes
50.
A glass cylinder with diameter 20 cm has water to a height of 9 cm. A metal cube of 8 cm edge is immersed in it completely. Calculate the height (correct to 1 decimal place) by which the water will rise in the cylinder (by taking Ο€ = 3.142).
A.
1.4 cm
B.
1.6 cm
C.
2.6 cm
D.
2 cm
ANSWER :
B. 1.6 cm