Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Thermal overload relays Breather Horn gaps Conservator Thermal overload relays Breather Horn gaps Conservator ANSWER DOWNLOAD EXAMIANS APP
Transformers Leakage flux in a transformer occurs because Air is not a good magnetic insulator Applied voltage is sinusoidal Transformer is not an efficient device Iron core has high permeability Air is not a good magnetic insulator Applied voltage is sinusoidal Transformer is not an efficient device Iron core has high permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 6 V 0.75 V 0 V 48 V 6 V 0.75 V 0 V 48 V ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load current of a transformer has has high magnitude and high power factor has high magnitude and low power factor has small magnitude and high power factor has small magnitude and low power factor has high magnitude and high power factor has high magnitude and low power factor has small magnitude and high power factor has small magnitude and low power factor ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following insulating materials can withstand the highest temperature safely? Cellulose Glass fibre Asbestos Mica Cellulose Glass fibre Asbestos Mica ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 9.6 0.96 0.4 4 9.6 0.96 0.4 4 ANSWER DOWNLOAD EXAMIANS APP
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