ELECTRIC TRACTION QUIZ

Overload capacity of diesel engines is usually restricted to

4 percent

8 percent

6 percent

2 percent

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When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when

Degree of curvature is more

None of the listed here

Wheel base of axles is more

Both of the listed here

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The wheels of a train, engine as well as bogies, are slightly tapered to

Facilitate braking

Facilitate in taking turns

Reduce friction

Increase friction

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In India diesel locomotives are manufactured at

Ajmer

Varanasi

Jamalpur

Bangalore

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Which of the following is the voltage for single phase A.C. system?

11 kV

220 v

220 V

5 kV

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Specific energy consumption is least in _______ service.

Urban

None of the listed here

Suburban

Main line

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In case of a steam engine an average coal consumption per km is nearly

100 to 120 kg

28 to 30 kg

60 to 80 kg

150 to 175 kg

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

(speed)2

(speed)3

speed

1/speed

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In case of steam engines the steam pressure is

1 to 4 kgf/cm²

10 to 15 kgf/cm²

25 to 35 kgf/cm²

5 to 8 kgf/cm²

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The overall efficiency of steam locomotive is around

5 to 10 percent

35 to 45 percent

25 to 35 percent

15 to 20 percent

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