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Electric Traction

Electric Traction
Which of the following is the voltage for single phase A.C. system?

220 V
11 kV
220 v
5 kV

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Electric Traction
Speed-time curve of main line service differs from those of urban and suburban services on following account

It has longer coasting period
All of the listed here
Accelerating and braking periods are comparatively smaller
It has longer free running period

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Electric Traction
The speed of a locomotive is controlled by

Flywheel
Regulating steam flow to engine
Applying brakes
Gear box

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Electric Traction
The voltage used for suburban trains in D.C. system is usually

12 V
220 V
24 V
600 to 750 V

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Electric Traction
For 25 kV single phase system power supply frequency is

60 Hz
50 Hz
100 Hz
25 Hz

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Electric Traction
Electric locomotives in India are manufactured at

Chittaranjan
Jamalpur
Bangalore
Gorakhpur

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