Electric Traction The wheels of a train, engine as well as bogies, are slightly tapered to Reduce friction Facilitate braking Facilitate in taking turns Increase friction Reduce friction Facilitate braking Facilitate in taking turns Increase friction ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Pole changing Cascade control Combination of cascade and pole changing Rheostat control Pole changing Cascade control Combination of cascade and pole changing Rheostat control ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is the voltage for single phase A.C. system? 11 kV 5 kV 220 V 220 v 11 kV 5 kV 220 V 220 v ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Locomotives with monometer bogies have Low coefficient of adhesion Uneven distribution of tractive effect Lot of skidding Suitability for passenger as well as freight service Low coefficient of adhesion Uneven distribution of tractive effect Lot of skidding Suitability for passenger as well as freight service ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Long distance railways use which of the following? 200 V D.C. 25 kV three phase A.C. 25 kV single phase A.C. 25 kV two phase A.C. 200 V D.C. 25 kV three phase A.C. 25 kV single phase A.C. 25 kV two phase A.C. ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of a steam engine an average coal consumption per km is nearly 28 to 30 kg 60 to 80 kg 150 to 175 kg 100 to 120 kg 28 to 30 kg 60 to 80 kg 150 to 175 kg 100 to 120 kg ANSWER DOWNLOAD EXAMIANS APP
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