RRB JE 2024-17-12-2024-1 RRB Question Paper

RRB JE 2024-17-12-2024-1 RRB Questions

1.
An electric fan is connected to a 220 V generator. The current is 0.50 A. What is the power used by the fan?
A.
110 Watt
B.
11 Watt
C.
440 Watt
D.
220 Watt
ANSWER :
A. 110 Watt
2.
Find the arithmetic mean of the following data (correct to two places of decimals).
Class interval: 5-15, 15-25, 25-35, 35-45, 45-55, 55-65
Frequency: 12, 18, 8, 14, 16, 8
A.
33.68
B.
43.72
C.
22.38
D.
39.45
ANSWER :
A. 33.68
3.
Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of ::?
# : RXT :: FLH : %
A.
# = OGT, % = IKH
B.
# = GHT, % = INY
C.
# = OUP, % = KIU
D.
# = OUQ, % = IOK
ANSWER :
D. # = OUQ, % = IOK
4.
Which of the following rivers is ephemeral?
A.
Beas
B.
Chambal
C.
Yamuna
D.
Luni
ANSWER :
D. Luni
5.
Which of the following is an example of a natural monopoly?
A.
Bookshop
B.
Railways
C.
Apple store in Delhi
D.
Malls
ANSWER :
B. Railways
6.
A number when increased by 50%, gives 2760. The number is:
A.
1840
B.
3680
C.
5520
D.
920
ANSWER :
A. 1840
7.
Write the expanded form of (5a + 6b + 8c)².
A.
25a² + 36b² + 64c² + 64ab + 96bc + 80ac
B.
25a² + 36b² + 64c² + 60ab + 91bc + 80ac
C.
25a² + 36b² + 64c² + 60ab + 96bc + 80ac
D.
25a² + 36b² + 64c² + 60ab + 96bc + 90ac
ANSWER :
C. 25a² + 36b² + 64c² + 60ab + 96bc + 80ac
8.
Two taps can fill a cistern in 2 hours and 45 hours respectively. A third tap can empty it in 45 hours. How long (in hours) will it take to fill the empty cistern, if all of them are opened together?
A.
2
B.
3
C.
4
D.
5
ANSWER :
A. 2
9.
Samples of four metals A, B, C and D were taken and added to a solution individually. The results obtained have been listed as follows.
A can displace B from its solution
B can displace D from its solution
C can displace D from its solution
C can displace A from its solution
Which is the most reactive metal?
A.
C
B.
B
C.
D
D.
A
ANSWER :
A. C
10.
Pollen grains are transferred to which part of pistil?
A.
Ovule
B.
Stigma
C.
Ovary
D.
Style
ANSWER :
B. Stigma