RRB Group D 2018-27-11-2018-2 RRB Question Paper

RRB Group D 2018 Question Papers

RRB Group D 2018-27-11-2018-2 RRB Questions

1.

The square root for 73 2- 55  2 is:

A.

42

B.

48

C.

18

D.

52

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ANSWER :

B. 48

2.
In the Constitution of India, the residuary powers are entrusted with the ________.
A.
centre
B.
village panchayat
C.
state
D.
both, state and centre
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ANSWER :
A. centre
3.
______ break the fat globules into smaller globules.
A.
Bile salts
B.
Pepsin
C.
Trypsin
D.
Amylase
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ANSWER :
A. Bile salts
4.
If W > X, X > Y and Y > Z, then which of the following conclusions is definitely wrong ?
A.
X > Z
B.
W > Z
C.
Z > W
D.
W > Y
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ANSWER :
C. Z > W
5.

Which pattern most closely resembles the following pattern?

A.

A

B.

C

C.

B

D.

D

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ANSWER :

B. C

6.
Ramesh raises an object of 12 kg through a height of 2.0 m. The work done by him is ________. (take g = 10 m/s 2 )
A.
24 J
B.
240 J
C.
12 J
D.
60 J
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ANSWER :
B. 240 J
7.
What happens when we switch on a light bulb?
A.
The filament or wire inside it burns with a yellow flame
B.
The filament gets active and glows.
C.
The filament or wire inside it gets heated and glows
D.
The wire inside it burns
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ANSWER :
C. The filament or wire inside it gets heated and glows
8.
If ‘plant’ is called -green’, ‘green’ is called flower’, ‘flower’ is called ‘blue’, ‘blue’ is called ‘white’ and ‘white’ is called ‘black’, then what is the colour of the clear sky?
A.
Flower
B.
Black
C.
White
D.
Blue
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ANSWER :
C. White
9.
A and B together can complete a piece of work in 12 days: B and C together can complete it in 15 days. If A is twice as good a workman as C, in how many days will A alone complete the same work?
A.
45
B.
60
C.
75
D.
30
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ANSWER :
D. 30
10.

Which one of these is an example of displacement reaction?

A.

Fe(s) + CuSO 4(aq) = FeSO 4(aq) + Cu(s)

B.

2FeSO 4(s) = Fe 2 O 3 (s) + SO 2  (g) + SO 3 (g)

C.

CaO(s) + H 2 O (1) = Ca(OH) 2  (aq)

D.

C(s) + O 2 (g) = CO 2  (g)

😑 View Answer Rough Work
ANSWER :

A. Fe(s) + CuSO 4(aq) = FeSO 4(aq) + Cu(s)