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Electric Traction

Electric Traction
In case of steam engines the steam pressure is

5 to 8 kgf/cm²
1 to 4 kgf/cm²
10 to 15 kgf/cm²
25 to 35 kgf/cm²

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Electric Traction
The rate of acceleration on suburban or urban service is in the range

1.6 to 4.0 km phps
5 to 10 km phps
0.2 to 0.5 km phps
15 to 25 km phps

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Electric Traction
Specific energy consumption becomes

Less if distance between stops is more
All of the listed here
More with high train resistance
More on steeper gradient

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Electric Traction
Methods can bring the locomotive to dead stop.

Rheostat braking
Regenerative braking
None of the listed here
Plugging braking

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Electric Traction
Overload capacity of diesel engines is usually restricted to

8 percent
4 percent
2 percent
6 percent

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Electric Traction
Which of the following happens in Kando system?

Three phase A.C. is converted into D.C.
Single phase supply is converted into three phase system
Single phase A.C. is converted into D.C.
None of the listed here

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