ELECTRIC TRACTION QUIZ

Battery operated trucks are used in

Narrow gauge traction

Steel mills

Power stations

Factories for material transportation

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If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails?

0.16

0.46

0.35

0.26

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Locomotives with monometer bogies have

Uneven distribution of tractive effect

Low coefficient of adhesion

Suitability for passenger as well as freight service

Lot of skidding

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Series motor is not suited for traction duty due to which of the following account?

Less current drain on the heavy load torque

Commutating property at heavy load

Current surges after temporary switching off supply

Self relieving property

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

Better braking action

Faster acceleration

No pollution problems

All of the listed here

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The speed of a superfast train is

100 kmph

More than 100 kmph

60 kmph

75 kmph

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The rate of acceleration on sub-urban or urban services is restricted by the consideration of

Track curves

Track size

Engine power

Passenger Discomfort

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In a steam locomotive electric power is provided through

Overhead wire

Battery system

Diesel engine generator

Small turbo-generator

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The horsepower of steam locomotives is

500 to 1000

2500 to 3000

Up to 1500

1500 to 2000

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Coefficient of adhesion is

All of the listed here

Low in case of D.C. traction than in the case of AC. traction

High in case of D.C. traction than in the case of AC. traction

Equal in both AC. and D.C. traction

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