Electric Traction Which of the following braking systems on the locomotives is costly? Vacuum braking on steam locomotives Regenerative braking on electric locomotives All braking systems are equally costly Vacuum braking on diesel locomotives Vacuum braking on steam locomotives Regenerative braking on electric locomotives All braking systems are equally costly Vacuum braking on diesel locomotives ANSWER DOWNLOAD EXAMIANS APP
Electric Traction _________ frequency is not common in low frequency traction system None of the listed here 25 Hz 40 Hz 16 Hz None of the listed here 25 Hz 40 Hz 16 Hz ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The air resistance to the movement of the train is proportional to (speed)2 1/speed speed (speed)3 (speed)2 1/speed speed (speed)3 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Methods can bring the locomotive to dead stop. None of the listed here Rheostat braking Plugging braking Regenerative braking None of the listed here Rheostat braking Plugging braking Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Locomotives with monometer bogies have Suitability for passenger as well as freight service Low coefficient of adhesion Lot of skidding Uneven distribution of tractive effect Suitability for passenger as well as freight service Low coefficient of adhesion Lot of skidding Uneven distribution of tractive effect ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction? All of the listed here Series parallel operation of motors Reduced current method Tap changing control of transformer All of the listed here Series parallel operation of motors Reduced current method Tap changing control of transformer ANSWER DOWNLOAD EXAMIANS APP
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