Transformers The efficiencies of transformers compared with that of electric motors of the same power are much higher somewhat smaller much smaller about the same much higher somewhat smaller much smaller about the same ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 50% 65% 95% 80% 50% 65% 95% ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases None of these load remains constant load on it decreases load on it increases None of these load remains constant load on it decreases ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has All of the listed here High permeability High silicon content Low hysteresis loss All of the listed here High permeability High silicon content Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The hum in a transformer is mainly attributed to magnetostriction load changes oil in the transformer mechanical vibrations magnetostriction load changes oil in the transformer mechanical vibrations ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? None of the listed here Oil cooled Water cooled Air cooled None of the listed here Oil cooled Water cooled Air cooled ANSWER DOWNLOAD EXAMIANS APP
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