Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 9 V 900 V 0.9 V 90 V 9 V 900 V 0.9 V 90 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ Apparent power Reactive power Leakage reactance None of the listed here Apparent power Reactive power Leakage reactance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers An isolation transformer has primary to secondady turns ratio of 1:2 2:1 1:1 Can be any ratio 1:2 2:1 1:1 Can be any ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High silicon content High permeability All of the listed here Low hysteresis loss High silicon content High permeability All of the listed here Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? None of the listed here Water cooled Air cooled Oil cooled None of the listed here Water cooled Air cooled Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers The flux in the core of a single phase transformer is _____ None of the listed here Purely alternating one Partly alternating and partly rotating Purely rotating one None of the listed here Purely alternating one Partly alternating and partly rotating Purely rotating one ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS