Transformers The efficiencies of transformers compared with that of electric motors of the same power are about the same much higher much smaller somewhat smaller about the same much higher much smaller somewhat smaller ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 90% load Zero load 25% load 50% load 90% load Zero load 25% load 50% load ANSWER DOWNLOAD EXAMIANS APP
Transformers Noise level test in a transformer is a type test routine test special test None of these type test routine test special test None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are hysteresis and eddy current losses copper losses friction and windage losses magnetic losses hysteresis and eddy current losses copper losses friction and windage losses magnetic losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 200 W 400 W None of the listed here 100 W 200 W 400 W None of the listed here 100 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Air motor Induction motor Shunt motor Synchronous motor Air motor Induction motor Shunt motor Synchronous motor ANSWER DOWNLOAD EXAMIANS APP
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