RRB NTPC 2021-05-01-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-05-01-2021-2 RRB Questions

21.
If sin2A = 2 sinA, then A = ?
A.
30°
B.
90°
C.
D.
60°
ANSWER :
C. 0°
22.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:
1. All engineers are graduates.
2. All graduates are successful.
Conclusions:
I. All successful are graduates
II. All engineers are successful.
A.
Either I or II
B.
Only II
C.
Both I and II
D.
Only I
ANSWER :
B. Only II
23.

If \(\frac{1}{5\sqrt{2}-7}\) = a\(\sqrt{2}\) + b, then the value of a and b are:

A.

−7, 5

B.

5, 7

C.

7, 5

D.

5, −7

ANSWER :

B. 5, 7

24.
A cylinder and a cone are of the same base radius and the same height. Find the ratio of the volume of the cylinder to that of the cone.
A.
3 : 1
B.
2 : 1
C.
1 : 3
D.
1 : 2
ANSWER :
A. 3 : 1
25.
The present population of a town is 50,000. If the population of the town increases by 4% annually, then what will be the population after 2 years?
A.
54,280
B.
54,080
C.
58,400
D.
54,840
ANSWER :
B. 54,080
26.

The United Nations General Assembly commemorates 21st June as:

A.

International Education Day

B.

International Babies Day

C.

International Day of Yoga

D.

International Health Day

ANSWER :

C. International Day of Yoga

27.
Which of the following is an antivirus software?
A.
Google
B.
XML
C.
Norton
D.
Microsoft
ANSWER :
C. Norton
28.
Which among the following hills has Indian desert to its western margin?
A.
Palani
B.
Kanchenjunga
C.
Aravali
D.
Dhupgarh
ANSWER :
C. Aravali
29.
In which river is India's largest river island, Majuli, located?
A.
Narmada
B.
Beas
C.
Indus
D.
Brahmaputra
ANSWER :
D. Brahmaputra
30.
Who among the following did NOT attend the first Round Table Conference in London?
A.
Muslim League
B.
Hindu Mahasabha
C.
Indian Princes
D.
Indian National Congress
ANSWER :
D. Indian National Congress