Transformers If a transformer core has air gaps, then, _________ Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers up to a rating of 1000 kVA 3000 kVA 500 kVA 250 kVA 1000 kVA 3000 kVA 500 kVA 250 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers In an auto transformer, the primary and secondary are _____ coupled. Only magnetically Only electrically None of the listed here Magnetically as well as electrically Only magnetically Only electrically None of the listed here Magnetically as well as electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following parts of a transformer is visible from outside? Core Bushings Secondary winding Primary winding Core Bushings Secondary winding Primary winding ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load current of a transformer has has high magnitude and low power factor has small magnitude and low power factor has small magnitude and high power factor has high magnitude and high power factor has high magnitude and low power factor has small magnitude and low power factor has small magnitude and high power factor has high magnitude and high power factor ANSWER DOWNLOAD EXAMIANS APP
Transformers Two things which are same for primary and secondary of transformer are ______ Ampere turns and voltage per turns None of the listed here Currents and induced voltages Resistance and leakage reactances Ampere turns and voltage per turns None of the listed here Currents and induced voltages Resistance and leakage reactances ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS