Electric Traction Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction? Series parallel operation of motors Tap changing control of transformer All of the listed here Reduced current method Series parallel operation of motors Tap changing control of transformer All of the listed here Reduced current method ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of locomotives the tractive power is provided by Double cylinder, double acting steam engine Double cylinder, single acting steam engine Single cylinder double acting steam engine Single stage steam turbine Double cylinder, double acting steam engine Double cylinder, single acting steam engine Single cylinder double acting steam engine Single stage steam turbine ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is the advantage of electric braking? It is instantaneous Motor continues to remain loaded during braking It avoids wear of track More heat is generated during braking It is instantaneous Motor continues to remain loaded during braking It avoids wear of track More heat is generated during braking ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on suburban or urban service is in the range 0.2 to 0.5 km phps 15 to 25 km phps 5 to 10 km phps 1.6 to 4.0 km phps 0.2 to 0.5 km phps 15 to 25 km phps 5 to 10 km phps 1.6 to 4.0 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on sub-urban or urban services is restricted by the consideration of Passenger Discomfort Engine power Track size Track curves Passenger Discomfort Engine power Track size Track curves ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Power for lighting in passenger coach, in a long distance electric train, is provided Through rails Through locomotive Directly through overhead electric line Through individual generator of bogie and batteries Through rails Through locomotive Directly through overhead electric line Through individual generator of bogie and batteries ANSWER DOWNLOAD EXAMIANS APP
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