RRB Group D 2022-17-9-2022-3 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-17-9-2022-3 RRB Questions

21.
Select the correct balanced chemical equation for the given reaction.
Magnesium(s) + Oxygen(g) โ†’ Magnesium oxide(s)
A.
2Mg(s) + Oโ‚‚(g) โ†’ 2MgO(s)
B.
2Mg(s) + Oโ‚‚(g) โ†’ 2MgOโ‚‚(s)
C.
Mg(s) + Oโ‚‚(g) โ†’ 2MgO(s)
D.
Mg(s) + Oโ‚‚(g) โ†’ MgOโ‚‚(s)
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ANSWER :
A. 2Mg(s) + Oโ‚‚(g) โ†’ 2MgO(s)
22.

Which of the following states has the largest deposits of jet black granite?

A.

Odisha

B.

Rajasthan

C.

Madhya Pradesh

D.

Karnataka

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ANSWER :

D. Karnataka

23.

In which of the following states can we experience the local wind ‘Loo’ during the summer season?

A.

Telangana

B.

Rajasthan

C.

Assam

D.

Maharashtra

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ANSWER :

B. Rajasthan

24.

What is the difference between the molecular masses of two successive members of the homologous series?

A.

14 u

B.

6 u

C.

8 u

D.

12 u

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ANSWER :

A. 14 u

25.
Which of the following is used to detect the presence of starch in food?
A.
Benedictโ€™s solution
B.
Litmus solution
C.
Phenolphthalein
D.
Iodine solution
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ANSWER :
D. Iodine solution
26.
The population of a town in 1980 was 2,25,000. If its population increased in two successive decades by 10% in each decade, the population of the town in 2000 was:
A.
2,72,250
B.
2,72,350
C.
2,72,150
D.
2,72,450
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ANSWER :
A. 2,72,250
27.
Six students P, Q, R, S, T and U are standing in a straight row such that all of them are facing towards north, but not necessarily in the same order. Q stands second from one of the ends and immediately to the right of P. Only two persons stand between P and R. R stands second to the left of T. The number of persons standing to the left of T is the same as to the right of T. T stands at the extreme right end of the row and to the immediate right of U. Q stands third to the left of U and stands to the immediate left of S. How many persons stand between Q and U?
A.
Two
B.
Four
C.
Three
D.
One
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ANSWER :
A. Two
28.
Ram bought a bulb rated as 50 W and 220 V. When it is connected to a 220 V supply, its resistance will be:
A.
1068 ฮฉ
B.
1098 ฮฉ
C.
868 ฮฉ
D.
968 ฮฉ
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ANSWER :
D. 968 ฮฉ
29.
Warts are caused by:
A.
Virus
B.
Algae
C.
Fungus
D.
Bacterium
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ANSWER :
A. Virus
30.

The roots of the quadratic equation x+\( \frac{10}{x} \) =7 are:

A.

–2, 5

B.

5, 2

C.

2, –5

D.

-5 ,-2

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ANSWER :

B. 5, 2