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Electric Traction
Which of the following is the voltage for single phase A.C. system?
5 kV
11 kV
220 v
220 V
5 kV
11 kV
220 v
220 V
Answer
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Related Question
Electric Traction
For 25 kV single phase system power supply frequency is
100 Hz
25 Hz
50 Hz
60 Hz
100 Hz
25 Hz
50 Hz
60 Hz
Answer
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Electric Traction
The air resistance to the movement of the train is proportional to
(speed)2
(speed)3
1/speed
speed
(speed)2
(speed)3
1/speed
speed
Answer
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Electric Traction
Due to which of the following coefficient of adhesion improves?
Rust on the rails
Dust on the rails
All of the listed here
Sand on the rails
Rust on the rails
Dust on the rails
All of the listed here
Sand on the rails
Answer
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Electric Traction
Which of the following braking systems is used on steam locomotives?
Hydraulic system
None of the listed here
Pneumatic system
Vacuum system
Hydraulic system
None of the listed here
Pneumatic system
Vacuum system
Answer
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Electric Traction
Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction?
Series parallel operation of motors
Tap changing control of transformer
Reduced current method
All of the listed here
Series parallel operation of motors
Tap changing control of transformer
Reduced current method
All of the listed here
Answer
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