RRB Group D 2022-14-9-2022-1 RRB Question Paper

RRB Group D 2022 Question Papers

RRB Group D 2022-14-9-2022-1 RRB Questions

21.
Find the median of 4, 6, 6, 8, 8, 8, 10, 12.
A.
8
B.
10
C.
12
D.
6
ANSWER :
A. 8
22.
Which of the following numbers will replace the question mark (?) in the given series?
12, 14, 18, 26, 42, ?
A.
74
B.
78
C.
72
D.
76
ANSWER :
A. 74
23.
Which compound is used for faster cooking?
A.
CaOClโ‚‚
B.
Naโ‚‚COโ‚ƒ
C.
NaHCOโ‚ƒ
D.
NaOH
ANSWER :
C. NaHCOโ‚ƒ
24.

If cosθ =\( \frac{x}{sinθ} \), then the value of sinโถθ + cosโถθ = ________.

A.

1 − 3x²

B.

0

C.

3x² − 1

D.

1

ANSWER :

A. 1 − 3x²

25.

What is the value of k if \(\frac{2^{-2k}\times4^{k+2}}{4^{-k+2}}\) =2k-2

A.

1

B.

-4

C.

-1

D.

2

ANSWER :

B. -4

26.
Which of the following animals have two-chambered heart?
A.
Birds
B.
Mammals
C.
Reptiles
D.
Fishes
ANSWER :
D. Fishes
27.
If each digit of the number 72514368 is subtracted from 9, how many even digits will be there in the newly formed number?
A.
3
B.
5
C.
6
D.
4
ANSWER :
D. 4
28.
________ are responsible for the determination of sex.
A.
Pleiotropic genes
B.
Autosomes
C.
Allosomes
D.
Germ cells
ANSWER :
C. Allosomes
29.

The given pie chart shows the sales of a company over five years. Study the chart and answer the question.

Sale = expenditure + profit
Profit % = (profit / expenditure) × 100%
If profit of the company in 2005 was 25%, then find the expenditure in 2005?

A.

62500

B.

8,00,000

C.

7,20,000

D.

7,50,000

ANSWER :

B. 8,00,000

30.
If an object is placed at 20 cm from a convex mirror of focal length 30 cm, the image will be formed at ______.
A.
+6 cm
B.
โ€“16 cm
C.
+12 cm
D.
โ€“12 cm
ANSWER :
C. +12 cm