RRB Group D 2022-1-9-2022-1 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-1-9-2022-1 RRB Questions

11.

If the diameter and the height of a cylinder are 12 cm and 10.5 cm, respectively, then using π = \( \frac{22}{7} \), find the volume of the cylinder.

A.

1281 cm³

B.

1288 cm³

C.

1188 cm³

D.

1313 cm³

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ANSWER :

C. 1188 cm³

12.

The value of
\(\left(-\frac{5}{3}\right)\times\left(\frac{9}{25}\right)+\left(\frac{1}{5}-2\right)\)

A.

\( \frac{-12}{5} \)

B.

0

C.

\( \frac{-4}{5} \)

D.

\( \frac{9}{5} \)

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ANSWER :

A. \( \frac{-12}{5} \)

13.
Find the LCM of 24, 42 and 56.
A.
618
B.
816
C.
168
D.
186
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ANSWER :
C. 168
14.
A, B, C, D, E, F and G were seven kings, sitting around a circular table, facing the centre. They were equidistant to one another. Only E was sitting between F and C. A was third to the left of G. Only D was sitting between A and B. G was sitting to the immediate left of C. Which king was sitting to the immediate left of G?
A.
F
B.
B
C.
D
D.
A
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ANSWER :
B. B
15.
P, Q, R, S, T and U are six siblings who passed their class tenth exam in different years viz. 2001, 2003, 2005, 2007, 2010 and 2012 but not necessarily in the same order.
P passed in one of the years before S and after R. Only Q passed before R. T passed in the year immediately after S. U passed in one of the years before P. Who passed their class tenth exam in the year 2007?
A.
U
B.
S
C.
P
D.
T
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ANSWER :
C. P
16.

Which of the following is RHS of the equation
\(\frac{\sin^2 A}{1-\cos A}\)

A.

cosec A

B.

tan A

C.

cos A + 1

D.

sec A + tan A

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ANSWER :

C. cos A + 1

17.
When sodium sulphide reacts with dilute hydrochloric acid, a gas with unpleasant smell is produced. This gas with unpleasant smell is:
A.
Hâ‚‚S
B.
SO₃
C.
SOâ‚‚
D.
Hâ‚‚
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ANSWER :
A. Hâ‚‚S
18.
Identify the basic requirements that led scientists towards the classification of elements.
(i) Identification of some pattern in different properties of elements
(ii) Rearrangement of elements on the basis of their synthesis
(iii) To get overall idea of the colour of different elements
A.
(i) and (iii)
B.
only (i)
C.
(ii) and (iii)
D.
(i), (ii) and (iii)
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ANSWER :
B. only (i)
19.

According to mirror formula, the focal length of a spherical mirror is equal to:

A.

\(\frac{uv}{u-v}\)

B.

\(\frac{uv}{u+v}\)

C.

\(\frac{u-v}{uv}\)

D.

\(\frac{u+v}{uv}\)

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ANSWER :

B. \(\frac{uv}{u+v}\)

20.

CuSO4​ + Mg ⇒ MgSO4​+ Cu
In the above reaction Mg is the:

A.

oxidising agent

B.

dissolving agent

C.

reducing agent

D.

catalyst

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ANSWER :

C. reducing agent