RRB Group D 2018-4-10-2018-1 RRB Question Paper

RRB Group D 2018 Question Papers

RRB Group D 2018-4-10-2018-1 RRB Questions

31.
The Gulf of Bothnia is situated between two countries. One of them is Finland. Which is the other country?
A.
Denmark
B.
Russia
C.
Sweden
D.
Norway
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ANSWER :
C. Sweden
32.
Kaushik bought a toy for Rs. 180 and sold it for Rs. 202.50 The rate of profit was _______ %
A.
15.25
B.
12.5
C.
16
D.
17.5
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ANSWER :
B. 12.5
33.
A cylinder has the same height as the radius of its base. A hollow sphere has the same outer radius as that of the base of the cylinder while the inner radius is half of the outer radius. Find the ratio of the volumes of the cylinder to the hollow sphere.
A.
5 : 6
B.
7 : 8
C.
6 : 7
D.
3 : 4
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ANSWER :
C. 6 : 7
34.
Objects move with a constant speed when no _______ is acting on it.
A.
pressure
B.
inertia
C.
force
D.
momentum
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ANSWER :
C. force
35.
A force of 10N is acting on an object. The object is displaced through 5 m in the direction of force. Then the work done is:
A.
-50 J
B.
50 Watt
C.
-50 N
D.
50 Nm
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ANSWER :
D. 50 Nm
36.
A tractor can finish its journey in 10 hours at the speed of 36km/hr. If the same distance must be covered in 8 hours, what should be the speed of the tractor?
A.
60 km/hr
B.
50 km/hr
C.
45 km/hr
D.
55 km/hr
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ANSWER :
C. 45 km/hr
37.
Which of the following reaction is precipitation reaction?
A.
Calcium carbonate → calcium oxide + Carbon dioxide
B.
Sodium sulphate + Barium chloride → Barium sulphate + Sodium chloride
C.
Lead + Copper chloride → Lead chloride + Copper
D.
Methane + Oxygen → Carbon dioxide + Water
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ANSWER :
B. Sodium sulphate + Barium chloride → Barium sulphate + Sodium chloride
38.
Padma is the sister of Suresh’s mother. How is Padma related to Suresh?
A.
Grandmother
B.
Mother
C.
Sister
D.
Aunt
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ANSWER :
D. Aunt
39.

If cosec 4θ - cosec 2θ = 1.24, then cot 4θ + cot 2θ = ?

A.

1.24

B.

1.86

C.

2.48

D.

0.62

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ANSWER :

A. 1.24

40.
How many hydrogen atoms are present in one molecule of ethanol?
A.
Six
B.
Four
C.
Seven
D.
Five
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ANSWER :
A. Six