Electric Traction For 25 kV single phase system power supply frequency is 100 Hz 50 Hz 25 Hz 60 Hz 100 Hz 50 Hz 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The horsepower of steam locomotives is Up to 1500 500 to 1000 2500 to 3000 1500 to 2000 Up to 1500 500 to 1000 2500 to 3000 1500 to 2000 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Long distance railways use which of the following? 25 kV two phase A.C. 25 kV single phase A.C. 25 kV three phase A.C. 200 V D.C. 25 kV two phase A.C. 25 kV single phase A.C. 25 kV three phase A.C. 200 V D.C. ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is an advantage of electric traction over other methods of traction? Better braking action Faster acceleration No pollution problems All of the listed here Better braking action Faster acceleration No pollution problems All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Rheostat control Pole changing Cascade control Combination of cascade and pole changing Rheostat control Pole changing Cascade control Combination of cascade and pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In tram ways which of the following motors is used? D.C. series motor AC. single phase capacitor start motor A.C. three phase motor D.C. shunt motor D.C. series motor AC. single phase capacitor start motor A.C. three phase motor D.C. shunt motor ANSWER DOWNLOAD EXAMIANS APP
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