RRB NTPC 2021-07-01-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-07-01-2021-2 RRB Questions

11.
Two statements are followed by two given conclusions. Choose the correct option considering the statement to be true irrespective of the commonly known facts.
Statement 1: Only cows are mammals.
Statement 2: No scientists are mammals.
Conclusion 1: Some cows are scientists.
Conclusion 2: Some scientists are mammals.
A.
Only conclusion 2 follows
B.
Both conclusion 1 and conclusion 2 follow
C.
Only conclusion 1 follows
D.
Neither conclusion 1 nor conclusion 2 follow
😑 View Answer Rough Work
ANSWER :
D. Neither conclusion 1 nor conclusion 2 follow
12.

3 + 2\(\sqrt{5}\) is:

A.

a natural number

B.

a rational number

C.

an irrational number

D.

a complex number

😑 View Answer Rough Work
ANSWER :

C. an irrational number

13.
What is URL?
A.
Address of the web page displayed on the internet
B.
A web browser
C.
A computer software
D.
Searching engine
😑 View Answer Rough Work
ANSWER :
A. Address of the web page displayed on the internet
14.
If one substitutes @ with either "+" or "*" (multiplication), in the expression 1@2@3@4@5@6, what is the maximum value that can be derived assuming that the correct order of mathematical operations are followed.
A.
720
B.
732
C.
612
D.
721
😑 View Answer Rough Work
ANSWER :
D. 721
15.

In any triangle ABC, a + b + c = 2s with usual notation, then Sin(\( \frac{A{2} \)) =

A.

\(\sqrt{\frac{(s-c)(s-a)}{ac}}\)

B.

\(\sqrt{\frac{(s-b)(s-c)}{bc}}\)

C.

\(\sqrt{\frac{(s-b)(s-c)}{s(s-a)}}\)

D.

\(\sqrt{\frac{s(s-a)}{bc}}\)

😑 View Answer Rough Work
ANSWER :

B.\(\sqrt{\frac{(s-b)(s-c)}{bc}}\)

16.

Looking at the following figure, where angle B and D are (7x-30)° and 5x° respectively, we can say that the value of x is:

A.

75°

B.

15°

C.

65°

D.

105°

😑 View Answer Rough Work
ANSWER :

B. 15°

17.
The selling price of 9 articles is equal to the cost price of 15 articles. In this transaction there is a:
A.
gain of 66.6% nearly
B.
loss of 40%
C.
loss of 66.6% nearly
D.
gain of 40%
😑 View Answer Rough Work
ANSWER :
A. gain of 66.6% nearly
18.
Who presented the Interim Union Budget on 1 February 2019?
A.
Manmohan Singh
B.
Piyush Goyal
C.
Shiv Pratap Shukla
D.
Arun Jaitley
😑 View Answer Rough Work
ANSWER :
B. Piyush Goyal
19.
The _____ were the first to discover a sea-route to India.
A.
Portuguese
B.
French
C.
English
D.
Dutch
😑 View Answer Rough Work
ANSWER :
A. Portuguese
20.
The total number of articles that were present originally in the Indian Constitution during its implementation is:
A.
396
B.
392
C.
391
D.
395
😑 View Answer Rough Work
ANSWER :
D. 395