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Electric Traction

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

220 V
600 to 750 V
24 V
12 V

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Electric Traction
Methods can bring the locomotive to dead stop.

Plugging braking
Regenerative braking
None of the listed here
Rheostat braking

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Electric Traction
Watt-hours per tonne km is usually the specific energy consumption for suburban services.

50 - 75
150-200
100-150
120-150

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Electric Traction
The return circuit for tram cars is through A. Neutral wire

Common earthing
Rails
Cables
Neutral wire

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Electric Traction
Specific energy consumption is least in _______ service.

Suburban
Main line
Urban
None of the listed here

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Electric Traction
The braking retardation is usually in the range

5 to 8 km phps
3 to 5 km phps
15 to 30 km phps
0.15 to 0.30 km phps

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