ELECTRIC TRACTION QUIZ

In case of locomotives the tractive power is provided by

Double cylinder, double acting steam engine

Single cylinder double acting steam engine

Double cylinder, single acting steam engine

Single stage steam turbine

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Which of the following braking systems is used on steam locomotives?

None of the listed here

Hydraulic system

Pneumatic system

Vacuum system

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_________ frequency is not common in low frequency traction system

25 Hz

40 Hz

16 Hz

None of the listed here

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In case of steam engines the steam pressure is

1 to 4 kgf/cm²

25 to 35 kgf/cm²

5 to 8 kgf/cm²

10 to 15 kgf/cm²

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Which of the following drives is suitable for mines where explosive gas exists?

Steam engine

Battery locomotive

Diesel engine

All of the listed here

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The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to

20

10

5

15

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Battery operated trucks are used in

Narrow gauge traction

Steel mills

Power stations

Factories for material transportation

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

24 V

220 V

12 V

600 to 750 V

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The speed of a locomotive is controlled by

Regulating steam flow to engine

Flywheel

Gear box

Applying brakes

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The air resistance to the movement of the train is proportional to

(speed)2

(speed)3

1/speed

speed

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