A. Work against the resistance to motion
B. Work against gravity while moving up the gradient
C. Acceleration
D. All of the above
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
