A. Work against the resistance to motion
B. Work against gravity while moving up the gradient
C. Acceleration
D. All of the above
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Related Mcqs:
- The specific energy consumption of a train depends on which of the following ?
- A. Acceleration and retardation B. Gradient C. Distance covered D. All of the above...
- Specific energy consumption is affected by which of the following factors ?
- A. Retardation and acceleration values B. Gradient C. Distance between stops D. All of the above...
- Specific energy consumption becomes________________?
- A. more on steeper gradient B. more with high train resistance C. less if distance between stops is more D. all of the above...
- Specific energy consumption is least in ________________ service?
- A. main line B. urban C. suburban...
- _______________watt-hours per tonne km is usually the specific energy consumption for suburban services?
- A. 15—20 B. 50—75 C. 120—150 D. 160—200...
- The wheels of a train, engine as well as bogies, are slightly tapered to_____________?
- A. reduce friction B. increase friction C. facilitate braking D. facilitate in taking turns...
- The speed of a superfast train is______________?
- A. 60 kmph B. 75 kmph C. 100 kmph D. more than 100 kmph...
- The air resistance to the movement of the train is proportional to_____________?
- A. speed B. (speed) C. (speed) D. 1/speed...
- The resistance encountered by a train in motion is on account of_________________?
- A. resistance offered by air B. friction at the track C. friction at various parts of the rolling stock D. all of the above...
- Power for lighting in passanger coach, in a long distance electric train, is provided_________________?
- A. directly through overhead electric line B. through individual generator of bogie and batteries C. through rails D. through locomotive...
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