RRB Group D 2022-2-9-2022-2 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-2-9-2022-2 RRB Questions

41.
Researchers at IIT Guwahati have developed a ‘smart’ window material in May 2021. What is the use of this material?
A.
It locates sources of faint light from distant quasars
B.
It maintains oxygen pressure that works without electricity
C.
It allows automatic climate control of buildings
D.
It increases the life of medical oxygen cylinders
😑 View Answer Rough Work
ANSWER :
C. It allows automatic climate control of buildings
42.
Which of the following elements is most metallic in nature?
A.
Ba
B.
Be
C.
Sr
D.
Ca
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ANSWER :
A. Ba
43.
Which of the following pairs will be in the same homologous series?
A.
CH₃CHO and CH₃OH
B.
CH₃OH and HCOOH
C.
C₂H₅OH and CH₃COOH
D.
CH₃COCH₃ and C₂H₅COCH₃
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ANSWER :
D. CH₃COCH₃ and C₂H₅COCH₃
44.
Seven people R, S, T, U, V, W and X were sitting around a circular table, facing the centre. They were equidistant to one another. T was sitting to the immediate right of S. W was sitting to the immediate left of V. R and U were immediate neighbours. Only X was sitting between V and S. U was sitting to the immediate right of T. Who was sitting to the immediate left of W?
A.
T
B.
R
C.
S
D.
U
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ANSWER :
B. R
45.
Which of the following is a characteristic of public goods?
A.
Non-rivalry
B.
Inelasticity
C.
Elasticity
D.
Excludable
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ANSWER :
A. Non-rivalry
46.
Which of the following cellular components is absent in most of the prokaryotes?
A.
Nuclear membrane
B.
Ribosome
C.
Cell wall
D.
Cytoplasm
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ANSWER :
A. Nuclear membrane
47.
Which team won the Pro Kabaddi League title of Season 8 in 2022?
A.
Dabang Delhi KC
B.
Bengaluru Bulls
C.
U Mumba
D.
Patna Pirates
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ANSWER :
A. Dabang Delhi KC
48.

The Following expression \(\frac{1+x}{1-x}-\frac{1-x}{1+x}+\frac{4x}{1+x^2}+\frac{8x^3}{1-x^4}\) is equal to

A.

\(\frac{8x}{1-x^2}\)

B.

\(\frac{8x}{1+x^2}\)

C.

\(\frac{4x}{1+x^2}\)

D.

\(\frac{4x}{1-x^2}\)

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ANSWER :

A. \(\frac{8x}{1-x^2}\)

49.
Consider the below statements and identify the correct answer.
Statement-I: The chemical formula for baking soda is NaHCO₃.
Statement-II: It is used in soda-acid fire extinguisher.
A.
Statement-I is true, and Statement-II is false.
B.
Statement-II is true, and Statement-I is false.
C.
Both the statements are false.
D.
Both the statements are true.
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ANSWER :
D. Both the statements are true.
50.
For a data, if the mean is 28.5 and the median is 32, then the mode using empirical formula is:
A.
42
B.
39
C.
41
D.
40
😑 View Answer Rough Work
ANSWER :
B. 39