RRB Group D 2022-28-9-2022-2 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-28-9-2022-2 RRB Questions

41.
Which of the following statements is/are always true?
a) In a parallelogram, diagonals bisect each other.
b) In a rectangle, the opposite angles are equal and each measure 90°.
c) Diagonals of a kite intersect at right angles.
A.
Only (b) and (c)
B.
All three of (a), (b) and (c)
C.
Only (a)
D.
Only (a) and (b)
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ANSWER :
B. All three of (a), (b) and (c)
42.
Which substance formed precipitates when a reaction occurs between potassium sulfate and barium chloride?
A.
Barium chloride
B.
Potassium chloride
C.
Potassium sulfate
D.
Barium sulfate
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ANSWER :
D. Barium sulfate
43.
The value of 2 - cos²θ/(1+sin θ) + (1+sin θ)/cos θ - cos θ/(1-sin θ) is:
A.
1 + cos θ
B.
1 - sin θ
C.
1 - cos θ
D.
1 + sin θ
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ANSWER :
D. 1 + sin θ
44.
If the quadratic equation ax² - 4x + 1 = 0 has equal roots, then the value of a is:
A.
2
B.
1
C.
3
D.
4
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ANSWER :
D. 4
45.
In September 2021, India's first pan-India toll-free helpline – 14567 which aims to provide information, guidance, emotional support, and in cases of abuse, immediate assistance too, was officially launched by the Ministry of Social Justice and Empowerment. What is this line called?
A.
Elder line
B.
Senior line
C.
Sahyog line
D.
Sampark line
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ANSWER :
A. Elder line
46.
If 5 is one root of x² - (a - 1)x + 10 = 0, then the other root is:
A.
2
B.
1
C.
6
D.
4
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ANSWER :
A. 2
47.
Which hormone helps the body to adjust to stress when one is very angry, embarrassed or worried?
A.
Adrenalin
B.
Estrogen
C.
Thyroxine
D.
Testosterone
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ANSWER :
A. Adrenalin
48.
Annie Besant founded the Central Hindu College at Banaras which she later handed over to ________.
A.
Madame HP Blavatsky
B.
Swami Vivekananda
C.
Madan Mohan Malviya
D.
Col. HS Olcott
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ANSWER :
C. Madan Mohan Malviya
49.
The power of an electric equipment through which a charge of 15 coulomb is flowing per 5 seconds when it is connected to a 20 V source is ________.
A.
1500 calorie
B.
60 calorie
C.
60 watt
D.
1500 watt
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ANSWER :
C. 60 watt
50.
Two mixtures A and B have the following compositions.
Mixture A has copper and tin in the ratio 1 : 2
Mixture B has copper and tin in the ratio 1 : 3
If equal quantities of mixtures A and B are used for producing mixture C, then find the ratio of copper and tin in mixture C.
A.
7 : 17
B.
7 : 12
C.
2 : 5
D.
1 : 5
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ANSWER :
A. 7 : 17