Transformers No-load on a transformer is carried out to determine efficiency of the transformer copper loss magnetising current and loss magnetising current efficiency of the transformer copper loss magnetising current and loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer is always a high voltage winding None of these is always a low voltage winding could either be a low voltage or high voltage winding is always a high voltage winding None of these is always a low voltage winding could either be a low voltage or high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ Is increased Remains unchanged None of the listed here Is decreased Is increased Remains unchanged None of the listed here Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformer to determine All day efficiency None of the listed here Stray losses Temperature All day efficiency None of the listed here Stray losses Temperature ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means locking of rotor due to harmonics interchanging two supply phases for quick stopping pulling the motor directly on line without a starter starting the motor on load which is more than the rated load locking of rotor due to harmonics interchanging two supply phases for quick stopping pulling the motor directly on line without a starter starting the motor on load which is more than the rated load ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Primary reactance is too much increased Core losses will be excessive Primary will draw large power None of the listed here Primary reactance is too much increased Core losses will be excessive Primary will draw large power None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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