RRB Group D 2022-20-9-2022-1 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-20-9-2022-1 RRB Questions

41.
Refer to the following letter series and answer the question.
(Left) J B I S O E Z I L U B O P A R D I H O M A K O (Right)
How many such consonants are there, each of which is immediately preceded by a vowel and also immediately followed by a vowel?
A.
Six
B.
Three
C.
Four
D.
Eight
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ANSWER :
D. Eight
42.
What is the trend for the atomic number while moving across a period in the modern periodic table?
A.
The atomic number decreases by one unit.
B.
The atomic number increases by two units.
C.
The mass number increases by one unit.
D.
The atomic number increases by one unit.
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ANSWER :
D. The atomic number increases by one unit.
43.

Study the given table and answer the question that follows.
The table shows percentage of marks obtained by a candidate in five subjects and the weightage given to the subjects in an examination.

Subject English Hindi Maths Social Studies Science
Marks Percentage 90 92 93 78 86
Weightage to subjects 2 2 3 1 2

Find the difference between the weighted average and the average if all subjects had equal weightage.

A.

1.5 %

B.

2 %

C.

1 %

D.

0.5 %

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ANSWER :

A. 1.5 %

44.

If \(\sqrt{21}\) = 4.58, then the value of \(\sqrt{\frac{7}{3}}\), correct to 3 decimal places, is:

A.

1.520

B.

1.521

C.

1.523

D.

1.527

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ANSWER :

D. 1.527

45.
Which of the following statements is correct?
A.
Plastics and paper are biodegradable.
B.
Plastic cannot be recycled.
C.
Paper cannot be recycled.
D.
Paper is biodegradable.
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ANSWER :
D. Paper is biodegradable.
46.
Select the option that represents the letters that, when placed from left to right in the same sequence in the blanks below, will complete the letter series.
D _ B _ A _ C _ G _ F _ E _ _ H
A.
CABDEFGH
B.
BACDEFGH
C.
CABDHEFG
D.
BADCHEFG
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ANSWER :
C. CABDHEFG
47.
Plaster of Paris should be stored in sealed containers. Which of the following is the correct explanation for the given assertion?
A.
It turns into a hard solid after reacting with moisture present in air.
B.
It decomposes in the presence of sunlight.
C.
It turns into hard solid after reacting with oxygen present in the air.
D.
It decomposes in the presence of oxygen.
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ANSWER :
A. It turns into a hard solid after reacting with moisture present in air.
48.

If one of the roots of a quadratic equation with rational coefficients is 2 + √3, then the quadratic equation is given as ______.

A.

x2= 2 - \(\sqrt{3}\)

B.

x2 - 4x + 1 = 0

C.

x2+ 4x - 1 = 0

D.

x2 - 2 = 0

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ANSWER :

B. x2 - 4x + 1 = 0

49.
When a car is moving through a dusty road during night, a path of beam from the headlight is clearly visible due to ______ effect.
A.
scattering
B.
dispersion
C.
refraction
D.
immersion
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ANSWER :
A. scattering
50.

If x+y+z=0 and x2+y2+z2=36, then the value of xy+yz+zx is:

A.

-18

B.

-6

C.

18

D.

-28

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ANSWER :

A. -18