Transformers Transformer having ratings less than 5kVA are generally ______ Natural air cooled Water cooled Oil cooled None of the listed here Natural air cooled Water cooled Oil cooled None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Iron core is used Applied voltage and frequency are constant Leakage flux is small Losses are small Iron core is used Applied voltage and frequency are constant Leakage flux is small Losses are small ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 50 Hz 2kVA, 200 Hz 2kVA, 400 Hz 2kVA, 500 Hz 2kVA, 50 Hz 2kVA, 200 Hz 2kVA, 400 Hz 2kVA, 500 Hz ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Star Star/Delta Delta/Star Delta/Delta Star/Star Star/Delta Delta/Star Delta/Delta 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 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 0.96 0.4 9.6 4 0.96 0.4 ANSWER DOWNLOAD EXAMIANS APP
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