RRB NTPC 2021-04-03-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-04-03-2021-1 RRB Questions

31.
The atomic number of an element is the number of ______ in the nucleus of each atom of that element.
A.
electrons
B.
mesons
C.
neutrons
D.
protons
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ANSWER :
D. protons
32.
To complete a given task, Imran takes 11 days, Tahir takes 15 days and Amla takes 13 days. Working together they finish the task and get ₹2,012. What will be the share of Imran provided the daily wage is the same for all?
A.
₹780
B.
₹580
C.
₹680
D.
₹880
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ANSWER :
A. ₹780
33.

If x⁴ + \( \frac{1}{x^4} \) = 322 and x > 1, then what is the value of x - \( \frac{1}{x} \)?

A.

6

B.

5

C.

4

D.

3

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ANSWER :

C. 4

34.
The capacity of a 3.5-inch floppy disk is:
A.
1.40 MB
B.
1.44 MB
C.
1 GB
D.
2.44 MB
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ANSWER :
B. 1.44 MB
35.
Which of the following comes under the 'amphibia' class of animals?
A.
Cat
B.
Turtle
C.
Pigeon
D.
Toad
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ANSWER :
D. Toad
36.
What is the name of the research station set up by India in Antarctica in the year 2012?
A.
Sagarika
B.
Bharati
C.
Dhruva
D.
Hind
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ANSWER :
B. Bharati
37.
India and France signed an implementation agreement on "MOBILISE YOUR CITY" (MYC) to reduce:
A.
Traffic in the city
B.
Particulate matter
C.
Green House Gas (GHG) emissions
D.
Sewage
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ANSWER :
C. Green House Gas (GHG) emissions
38.
Western Ghats and Eastern Ghats meet at ______ hills.
A.
Nilgiri
B.
Amarkantak
C.
Shivalik
D.
Maikal
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ANSWER :
A. Nilgiri
39.
The four sides of a quadrilateral are in the ratio of 4 : 5 : 6 : 7 and its perimeter is 176 cm. Find the length of its longest side.
A.
75 cm
B.
65 cm
C.
57 cm
D.
56 cm
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ANSWER :
D. 56 cm
40.
Who among the following is NOT related to Apple Inc. as its co-founder?
A.
Ronald Wayne
B.
Mark Zuckerberg
C.
Steve Jobs
D.
Steve Wozniak
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ANSWER :
B. Mark Zuckerberg