RRB Group D 2022-6-10-2022-2 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-6-10-2022-2 RRB Questions

21.

The given pie chart shows the percentage-wise distribution of the cost of items used in making 1 litre of strawberry shake. Study the chart and answer the question that follows.
 
If the total cost in making 3 litres of strawberry shake is Rs 1,500, then what is the cost of strawberries in making 1 litre of strawberry shake?

A.

120

B.

150

C.

100

D.

180

😑 View Answer Rough Work
ANSWER :

C. 100

22.
A light ray passing through the ______ of a lens passes without any deviation.
A.
optical centre
B.
edges
C.
2F (twice of focal length)
D.
Focus
😑 View Answer Rough Work
ANSWER :
A. optical centre
23.
The median of the data 9, 12, 11, 8, 16, 10, 14, 13, 17, 20, 2, 24 is x. If 2 and 8 are replaced by 21 and 18 in this data, respectively, then the median of the data so obtained is y. What is the value of (3x – y)?
A.
23.5
B.
25
C.
24.5
D.
26
😑 View Answer Rough Work
ANSWER :
B. 25
24.
Which of the following products is formed by the electrolytic decomposition of brine?
A.
Bleaching powder
B.
Potassium hydroxide
C.
Calcium hydroxide
D.
Sodium hydroxide
😑 View Answer Rough Work
ANSWER :
D. Sodium hydroxide
25.
Which among the following elements possesses greater tendency to gain electrons?
A.
Oxygen
B.
Fluorine
C.
Nitrogen
D.
Carbon
😑 View Answer Rough Work
ANSWER :
B. Fluorine
26.
Select the correct example of double displacement reaction.
A.
CaO + H₂O → Ca(OH)₂
B.
CuSO₄ + H₂S → CuS + H₂SO₄
C.
2NaCl → 2Na + Cl₂
D.
2AgBr → 2Ag + Br₂
😑 View Answer Rough Work
ANSWER :
B. CuSO₄ + H₂S → CuS + H₂SO₄
27.
Which of the following components of blood promotes immunity and helps the body fight against germs?
A.
Blood platelets
B.
Blood plasma
C.
Red blood cells
D.
White blood cells
😑 View Answer Rough Work
ANSWER :
D. White blood cells
28.
The LCM of two numbers is 20 times their HCF and their HCF is 21. If one of the two numbers is divided by 25, the quotient is 4 and the remainder is 16. The other number is:
A.
639
B.
852
C.
426
D.
1065
😑 View Answer Rough Work
ANSWER :
B. 852
29.
The cost that a firm incurs to employ fixed inputs is called:
A.
average fixed cost
B.
average variable cost
C.
total fixed cost
D.
total variable cost
😑 View Answer Rough Work
ANSWER :
C. total fixed cost
30.

Pipe A can fill a tank in 8 hours. Pipes B and C can empty the full tank in 20 hours and 15 hours, respectively. Pipes A and B are opened together for 5 hours, and then B is closed, and C is opened instantly. The tank will be full in a total time of:

A.

10 \( \frac{5}{7} \) hours

B.

15 \( \frac{5}{7} \) hours

C.

10 \( \frac{3}{7} \) hours

D.

11 \( \frac{2}{7} \) hours

😑 View Answer Rough Work
ANSWER :

B. 15 \( \frac{5}{7} \) hours