Computer Programming MCQs

5739 MCQs  (Page 528 of 574)

have maximum unbalanced forces_______________?
A. Diesel shunters
B. Steam locomotives
C. Electric locomotives
D. Diesel locomotives
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
Series motor is not suited for traction duty due to which of the following account ?
A. Less current drain on the heavy load torque
B. Current surges after temporary switching off supply
C. Self relieving property
D. Commutating property at heavy load
Vacuum is created by which of the following ?
A. Vacuum pump
B. Ejector
C. Any of the above
D. None of the above
Battery operated trucks are used in________________?
A. Steel mills
B. Power stations
C. Narrow gauge traction
D. Factories for material transportation
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
_______________method can bring the locomotive to dead stop?
A. Plugging braking
B. Rheostatic braking
C. Regenerative braking
D. None of the above
In main line service as compared to urban and suburban service______________?
A. Distance between the stops is more
B. Maximum speed reached is high
C. Acceleration and retardation rates are low
D. All of the above