Transformers A common method of colling a power transformer is Air blast cooling Any of the listed here Oil cooling Natural air cooling Air blast cooling Any of the listed here Oil cooling Natural air cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary through cooling coil by the flux None of these through air through cooling coil by the flux None of these through air ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 3000 kVA 250 kVA 500 kVA 1000 kVA 3000 kVA 250 kVA 500 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ None of the listed here Primary reactance is too much increased Primary will draw large power Core losses will be excessive None of the listed here Primary reactance is too much increased Primary will draw large power Core losses will be excessive ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ None of the listed here Either low or high voltage winding Low voltage winding High voltage winding None of the listed here Either low or high voltage winding Low voltage winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Time period Voltage Power Frequency Time period Voltage Power Frequency ANSWER DOWNLOAD EXAMIANS APP
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