RRB JE 2015-28-09-2015-3 RRB Question Paper

RRB JE 2015 Question Papers

RRB JE 2015-28-09-2015-3 RRB Questions

11.
In the forging operation, fullering is done to
A.
Draw out the material
B.
Bend the material
C.
Upset the material
D.
Extrude the material
😑 View Answer Rough Work
ANSWER :
A. Draw out the material
12.
Which one of the following is not a fusion welding process
A.
Gas welding
B.
Arc welding
C.
Brazing
D.
Resistance welding
😑 View Answer Rough Work
ANSWER :
C. Brazing
13.
The centrifugal casting method is used for casting articles of
A.
Symmetrical shape about vertical axis
B.
Symmetrical shape about horizontal axis
C.
Irregular shape
D.
Non-ferrous metal only
😑 View Answer Rough Work
ANSWER :
B. Symmetrical shape about horizontal axis
14.
The purpose of jigs and fixture is to
A.
Increase machining accuracy
B.
facilitate interchangeability
C.
Decrease expenditure on quality control
D.
Decrease Machining accuracy
😑 View Answer Rough Work
ANSWER :
A. Increase machining accuracy
15.
Directional relays are based on the flow of
A.
power
B.
voltage wave
C.
current
D.
field
😑 View Answer Rough Work
ANSWER :
A. power
16.
In fuel cell,........... Energy is converted into electrical energy.
A.
mechanical
B.
heat
C.
sound
D.
chemical
😑 View Answer Rough Work
ANSWER :
D. chemical
17.
Francis turbine is usually used for
A.
medium heads
B.
lower heads
C.
higher heads
D.
lower, medium and higher heads
😑 View Answer Rough Work
ANSWER :
A. medium heads
18.
The angle between rotating stator flux and rotor poles is called
A.
torque angle
B.
obtuse angle
C.
synchronising angle
D.
power factor angle
😑 View Answer Rough Work
ANSWER :
A. torque angle
19.
Which of the following motors is used in tape recorders
A.
Hysterisis motor
B.
Reluctance motor
C.
Capacitor run motor
D.
Universal motor
😑 View Answer Rough Work
ANSWER :
A. Hysterisis motor
20.
Slip rings for induction motors are made up of
A.
cobalt steel
B.
aluminium
C.
carbon
D.
phosphor bronze
😑 View Answer Rough Work
ANSWER :
D. phosphor bronze