Electric Traction Series motor is not suited for traction duty due to which of the following account? Commutating property at heavy load Self relieving property Less current drain on the heavy load torque Current surges after temporary switching off supply Commutating property at heavy load Self relieving property Less current drain on the heavy load torque Current surges after temporary switching off supply ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The resistance encountered by a train in motion is on account of Friction at various parts of the rolling stock Friction at the track Resistance offered by air All of the listed here Friction at various parts of the rolling stock Friction at the track Resistance offered by air All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction ________ have maximum unbalanced forces. Steam locomotives All of the listed here Diesel locomotives Electric locomotives Steam locomotives All of the listed here Diesel locomotives Electric locomotives ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on suburban or urban service is in the range 15 to 25 km phps 0.2 to 0.5 km phps 1.6 to 4.0 km phps 5 to 10 km phps 15 to 25 km phps 0.2 to 0.5 km phps 1.6 to 4.0 km phps 5 to 10 km phps ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Combination of cascade and pole changing Cascade control Rheostat control Pole changing Combination of cascade and pole changing Cascade control Rheostat control Pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is the advantage of electric braking? It is instantaneous It avoids wear of track More heat is generated during braking Motor continues to remain loaded during braking It is instantaneous It avoids wear of track More heat is generated during braking Motor continues to remain loaded during braking ANSWER DOWNLOAD EXAMIANS APP
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