RRB Group D 2018-31-10-2018-2 RRB Question Paper

RRB Group D 2018 Question Papers

RRB Group D 2018-31-10-2018-2 RRB Questions

21.

\(\sqrt{\frac{?}{3136}}=\frac{1}{2}\) Find the value of the question mark

A.

56

B.

784

C.

1568

D.

28

😑 View Answer Rough Work
ANSWER :

B. 784

22.

The frequency distribution of diameter (D) of 101 steel balls is given in the following list- find the mean of the diameter in mm

D(mm) 43 44 45 46 47 48
No. 13 15 22 21 16 14
A.

45.4

B.

45.5

C.

45.7

D.

45.6

😑 View Answer Rough Work
ANSWER :

B. 45.5

23.
If the potential difference across the terminals of an electric heater is 60V when it receives a current of 4A from the source. If the potential difference increases to 150V, what will be the current received by the heater?
A.
24A
B.
8.5A
C.
10A
D.
12A
😑 View Answer Rough Work
ANSWER :
C. 10A
24.
Evaluate
A.
Inversely proportional to [9]
B.
144
C.
Inversely proportional to [144]
D.
9
😑 View Answer Rough Work
ANSWER :
B. 144
25.

Calculate the energy of an object of mass 10 kg placed at a height of 6 m above the ground. Given, g = 9.8 ms -2

A.

578 J

B.

588 J

C.

578 W

D.

588 W

😑 View Answer Rough Work
ANSWER :

B. 588 J

26.
In a code language, LIVE is written as OREV. What is the code for DEAD?
A.
XVZX
B.
UVZU
C.
GVZG
D.
WVZW
😑 View Answer Rough Work
ANSWER :
D. WVZW
27.
Who is the Union Minister of Environment and Climate Change (as of July 2018)?
A.
Rajnath Singh
B.
Dr. Harsh Vardhan
C.
Prakash Javadekar
D.
V.K. Singh
😑 View Answer Rough Work
ANSWER :
B. Dr. Harsh Vardhan
28.

The area of the circumscribed circle of a right-angled triangle with sides 8 cm, 4\(\sqrt{5}\)and 12 cm will be ________.

A.

27 πcm 2

B.

36 πcm 2

C.

18 πcm 2

D.

9 πcm 2

😑 View Answer Rough Work
ANSWER :

B. 36 πcm 2

29.
Which of the following are examples of potential energy?
A. A brick placed on the roof of the house
B. When the spring of a clock rotates
C. Compressed Spring
D. water stored in a high reservoir underwater supply system
A.
A, D
B.
C, D
C.
A, B and C
D.
A, B, C, D
😑 View Answer Rough Work
ANSWER :
D. A, B, C, D
30.
In each of the questions below is given a statement followed by two assumptions numbered I and II. You have to consider the statement and the following assumptions and decide which of the assumptions are implicit in the statement.
Statements:
Everyone loves Indian clothes.
Assumptions:
I. Indian clothes are the only clothes available.
II. No one loves any other clothes .
A.
Only assumption I is implicit
B.
Neither I nor II is implicit
C.
Only Assumption II is implicit
D.
Both I and II are implicit
😑 View Answer Rough Work
ANSWER :
B. Neither I nor II is implicit