RRB Group D 2022-19-9-2022-1 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-19-9-2022-1 RRB Questions

21.
Which of the following is INCORRECT regarding the flow of energy between various components of the environment?
A.
Every trophic level loses some energy as heat to the environment.
B.
Green plants capture about 10% of the solar energy that falls on leaves.
C.
The amount of organic matter present at each trophic level is 10%.
D.
Energy flow is unidirectional.
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ANSWER :
B. Green plants capture about 10% of the solar energy that falls on leaves.
22.

If the ratio of the areas of two squares is 2 : 3, then the ratio of the perimeters of these two squares, in the order mentioned, is ______.

A.

\(\sqrt{2}\) : 3

B.

4 : 9

C.

2 : \(\sqrt{3}\)

D.

\(\sqrt{2}\) : \(\sqrt{3}\)

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ANSWER :

D. \(\sqrt{2}\) : \(\sqrt{3}\)

23.
Which of the following statements is INCORRECT about AIDS?
A.
The virus can pass on to a normal person from an infected person by sharing the syringes used for injecting drugs.
B.
The virus can be transmitted through sexual contact with a person infected with HIV.
C.
The virus can be transmitted to an infant from the infected mother through her milk.
D.
The virus can be transmitted by shaking hands with a person infected with HIV.
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ANSWER :
D. The virus can be transmitted by shaking hands with a person infected with HIV.
24.
Anand bought a car for Rs 8,00,000 and sold it at a profit of 5% to Dhiraj. Dhiraj sold it at a loss of 4% to Anil. What is the amount paid by Anil for the car?
A.
Rs 8,60,000
B.
Rs 8,06,400
C.
Rs 8,40,000
D.
Rs 8,73,600
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ANSWER :
B. Rs 8,06,400
25.
The position of how many letters will remain unchanged if each of the letters in the word “SHIRT” is arranged in alphabetical order?
A.
Two
B.
Three
C.
Four
D.
One
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ANSWER :
D. One
26.

In a queue, Mahima is 25th from the front end and Anshul is 22th from the rear end, and there are 5 people between them. How many people are there in the queue if Anshul is standing somewhere behind Mahima in the queue?

A.

55

B.

53

C.

54

D.

56

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ANSWER :

A. 55

27.

Find the value of \(\frac{\sin(90^\circ-\theta)\cos(90^\circ-\theta)\cot(90^\circ-\theta)}{\cos^2\theta-1}\) is _______

A.

tan θ

B.

0

C.

−1

D.

2 sin θ cos θ

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ANSWER :

C. −1

28.
Who among the following is popularly known as ‘Waterman of India’?
A.
Dr. Arun Krishnan
B.
Dr. Rajendra Singh
C.
Dr. Hiralal Chaudhuri
D.
Dr. M. S. Swaminathan
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ANSWER :
B. Dr. Rajendra Singh
29.
What happens during menstruation?
A.
The uterine lining is shed.
B.
There is failure of fertilisation of the ovum.
C.
The wall of the uterus becomes vascular.
D.
A mature egg is released from an ovary.
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ANSWER :
A. The uterine lining is shed.
30.
In an electrical circuit four identical bulbs are connected in parallel to each other to a battery of 10 V (negligible internal resistance). When all the four bulbs glow, a current of 4 A is recorded. Then the power dissipated in the circuit and the resistance of each bulb are ______ and ______, respectively.
A.
22.4 W, 1.4 Ω
B.
25.6 W, 1.6 Ω
C.
27.2 W, 1.7 Ω
D.
24 W, 1.5 Ω
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ANSWER :
B. 25.6 W, 1.6 Ω