Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Auto transformer Step-up transformer Potential transformer Current transformer Auto transformer Step-up transformer Potential transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following insulating materials can withstand the highest temperature safely? Asbestos Cellulose Mica Glass fibre Asbestos Cellulose Mica Glass fibre ANSWER DOWNLOAD EXAMIANS APP
Transformers Noise level test in a transformer is a None of these type test special test routine test None of these type test special test routine test ANSWER DOWNLOAD EXAMIANS APP
Transformers If a power transformer is operated at very high frequencies, then ______ Core losses will be excessive None of the listed here Primary will draw large power Primary reactance is too much increased Core losses will be excessive None of the listed here Primary will draw large power Primary reactance is too much increased 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 4 0.4 0.96 9.6 4 0.4 0.96 ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of 15 A less than 15 A more than 15 A None of these 15 A less than 15 A more than 15 A None of these ANSWER DOWNLOAD EXAMIANS APP
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