RRB Group D 2022-18-9-2022-2 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-18-9-2022-2 RRB Questions

21.
Nichrome is used to make an electric heater because it has:
A.
low resistivity and low melting point
B.
low resistivity and high melting point
C.
high resistivity and low melting point
D.
high resistivity and high melting point
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ANSWER :
D. high resistivity and high melting point
22.
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
42 : 7 :: 110 : 11 :: 132 : ?
A.
13
B.
15
C.
17
D.
12
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ANSWER :
D. 12
23.
Which of the following processes is NOT applicable to photosynthesis?
A.
Oxidation of carbon dioxide forms carbohydrates
B.
Chlorophyll absorbs light
C.
Water molecule splits into hydrogen and oxygen
D.
Light energy is converted to chemical energy
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ANSWER :
A. Oxidation of carbon dioxide forms carbohydrates
24.
Which of the following balanced reactions is correct for the given reaction?
Silver nitrate + Sodium chloride → Silver chloride + Sodium nitrate
A.
AgNO₃ + 2NaCl → AgCl + 2NaNO₃
B.
3AgNO₃ + NaCl → 3AgCl + 2NaNO₃
C.
2AgNO₃ + NaCl → 2AgCl + NaNO₃
D.
AgNO₃ + NaCl → AgCl + NaNO₃
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ANSWER :
D. AgNO₃ + NaCl → AgCl + NaNO₃
25.
The most important Gondwana coal fields that lie in the Jharkhand–Bengal coal belt of India are located in the ________.
A.
Manali Valley
B.
Dehradun
C.
Damodar Valley
D.
Kaveri Basin
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ANSWER :
C. Damodar Valley
26.
Read the given statement and the arguments carefully and select the appropriate answer from the given options.
Statement:
Global warming has become an unprecedented issue over the globe.
Arguments:
I. Urban life style produces a vast amount of greenhouse gases.
II. Change in temperature in many countries is an indicator of global warming.
A.
I weakens while II strengthens the statement.
B.
I weakens while II strengthens the statement.
C.
Both I and II weaken the statement.
D.
Both I and II strengthen the statement.
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ANSWER :
D. Both I and II strengthen the statement.
27.
Which of the following statements is not true?
A.
Potassium is least reactive in the reactivity series
B.
Reactivity series is a list of metals arranged in the order of their decreasing reactivities
C.
The metals in the middle of the reactivity series are moderately reactive
D.
The metals high up in the reactivity series can be obtained from their compounds by electrolytic reduction
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ANSWER :
A. Potassium is least reactive in the reactivity series
28.
Which of the following materials is best suitable for making an electromagnet?
A.
Soft iron
B.
Steel
C.
Aluminum
D.
Copper
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ANSWER :
A. Soft iron
29.
Find the value of
A.
1 (15/32)
B.
1 (11/32)
C.
1 (13/32)
D.
1 (17/32)
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ANSWER :
C. 1 (13/32)
30.
If an object is kept at a distance of 50 cm from a convex lens of focal length 20 cm, then the image distance is:
A.
33.3 cm
B.
3.33 cm
C.
333 cm
D.
0.333 cm
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ANSWER :
A. 33.3 cm