Transformers In a transformer routine efficiency depends upon Power factor of load Both power factor and load current Supply frequency Load current Power factor of load Both power factor and load current Supply frequency Load current ANSWER DOWNLOAD EXAMIANS APP
Transformers By laminating the core of a transformer, we decrease _____ Leakage reactance Copper loss Eddy current loss Hysteresis loss Leakage reactance Copper loss Eddy current loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Air cooled None of the listed here Water cooled Oil cooled Air cooled None of the listed here Water cooled Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Conservator Thermal overload relays Horn gaps Breather Conservator Thermal overload relays Horn gaps Breather ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 100 W 200 W None of the listed here 400 W 100 W 200 W None of the listed here 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Secondary winding only Both primary and secondary windings None of the listed here Primary winding only Secondary winding only Both primary and secondary windings None of the listed here Primary winding only ANSWER DOWNLOAD EXAMIANS APP
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