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Electric Traction

Electric Traction
The horsepower of steam locomotives is

1500 to 2000
500 to 1000
Up to 1500
2500 to 3000

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Electric Traction
Coefficient of adhesion reduces due to the presence of which of the following?

Both Dew on rails and Oil on the rails
Dew on rails
Oil on the rails
Sand on rails

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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
Reduced current method
Tap changing control of transformer
All of the listed here

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Electric Traction
Main traction systems used in India are, those using

Electric locomotives
Steam engine locomotives
All of the listed here
Diesel engine locomotives

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Electric Traction
Which of the following is an advantage of electric traction over other methods of traction?

Faster acceleration
Better braking action
All of the listed here
No pollution problems

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Electric Traction
Power for lighting in passenger coach, in a long distance electric train, is provided

Through individual generator of bogie and batteries
Through locomotive
Through rails
Directly through overhead electric line

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