RRB JE 2015-27-09-2015-2 RRB Question Paper

RRB JE 2015 Question Papers

RRB JE 2015-27-09-2015-2 RRB Questions

41.
Plaster of paris is obtained by calcining
A.
Gypsum
B.
Bauxite
C.
Lime stone
D.
Kanker
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ANSWER :
A. Gypsum
42.
Plywood is obtained from
A.
Bamboo
B.
Teak wood
C.
Structural timber
D.
Commonly available timber
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ANSWER :
C. Structural timber
43.
Which of the following device is not used to measure the rate of flow
A.
Venturimeter
B.
Pitot tube
C.
Orificemeter
D.
Rotameter
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ANSWER :
B. Pitot tube
44.
Intersection method of detailed plotting is most suitable for
A.
Forests
B.
Urban areas
C.
Hilly areas
D.
Plains
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ANSWER :
C. Hilly areas
45.
Coarse grained soils are best compacted by a
A.
Drum roller
B.
Rubbed tyred roller
C.
Sheep's foot roller
D.
Vibratory roller
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ANSWER :
D. Vibratory roller
46.
Percentage of carbon content in mild steel is
A.
Less than 0.25
B.
Between 0.25 to 0.7
C.
Between 0.7 to 1.5
D.
Greater than 1.5
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ANSWER :
A. Less than 0.25
47.
An induction meter can handle current upto
A.
10 A
B.
30 A
C.
60 A
D.
100 A
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ANSWER :
D. 100 A
48.
Induction type single phase energy meters measure electric energy in
A.
kW
B.
Wh
C.
kWh
D.
VAR
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ANSWER :
C. kWh
49.
Which of the following is / are an essential part of a motor meter?
A.
An operating torque system
B.
A braking device
C.
Revolution registering device
D.
operating torque system, braking device and Revolution registering device
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ANSWER :
D. operating torque system, braking device and Revolution registering device
50.
----------- is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another.
A.
Tangent galvanometer
B.
Meggar
C.
Current transformer
D.
Thermisto
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ANSWER :
B. Meggar