RRB NTPC 2021-08-02-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-08-02-2021-1 RRB Questions

21.
What is Optical Distribution Network (ODN)?
A.
The physical fibres that distribute signals to users in a telecommunications network.
B.
The physical fibres that distribute signals to users in an electronic circuit.
C.
The optical devices that cannot distribute signals.
D.
The physical fibre and optical devices that distribute signals to users in a telecommunications network.
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ANSWER :
D. The physical fibre and optical devices that distribute signals to users in a telecommunications network.
22.

The sum of two numbers is 30. If the sum of their reciprocals is \( \frac{6}{25} \), find the two numbers.

A.

7 and 23

B.

5 and 25

C.

11 and 19

D.

9 and 21

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ANSWER :

B. 5 and 25

23.

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

A.

2

B.

1

C.

5

D.

11

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ANSWER :

A. 2

24.
The population of Ludhiana city increases by 20% annually. If it's present population is 8,47,000, What will the population be in 2 years?
A.
12,19,680
B.
12,14,682
C.
12,12,068
D.
12,10,681
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ANSWER :
A. 12,19,680
25.
FTTP stands for:
A.
Frame To The Permission
B.
Fiber To The Permission
C.
Fiber To The Premises
D.
Fusion To The Premises
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ANSWER :
C. Fiber To The Premises
26.
18 apple trees, 21 mango trees and 39 orange trees have to be planted in rows such that each row contains the same number of trees and all of the same variety only. The minimum number of rows in which the trees may be planted is:
A.
26
B.
28
C.
24
D.
22
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ANSWER :
A. 26
27.
The difference between the interior and exterior angles at a vertex of a regular polygon is 140°. The number of sides of the polygon is:
A.
22
B.
18
C.
20
D.
24
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ANSWER :
B. 18
28.
The Kolkata Port is located on which river?
A.
Godavari
B.
Ganges
C.
Mahanadi
D.
Hoogly
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ANSWER :
D. Hoogly
29.
Which of the following organization's headquarters is NOT correctly matched?
A.
NATO-Brussels
B.
OPEC-Zurich
C.
UNICEF-New York
D.
World Bank-Washington
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ANSWER :
B. OPEC-Zurich
30.
For his involvement in the Jallianwala Bagh massacre, Michael Francis O'Dwyer was assassinated by:
A.
Mangal Pandey
B.
Udham Singh
C.
Bhagat Singh
D.
Chandrashekhar Azad
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ANSWER :
B. Udham Singh