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Electric Traction

Electric Traction
The normal value of adhesion friction is

0.30
0.25
0.50
0.35

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Electric Traction
The overall efficiency of steam locomotive is around

35 to 45 percent
25 to 35 percent
15 to 20 percent
5 to 10 percent

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Electric Traction
Vacuum is created by which of the following?

Any of the listed here
Ejector
None of the listed here
Vacuum pump

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Electric Traction
The resistance encountered by a train in motion is on account of

Friction at various parts of the rolling stock
Friction at the track
Resistance offered by air
All of the listed here

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Electric Traction
In India diesel locomotives are manufactured at

Ajmer
Bangalore
Varanasi
Jamalpur

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Electric Traction
The value of coefficient of adhesion will be high when rails are

Cleaned with sand
Wet
Greased
Sprayed with oil

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