Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 16 kVA 4 kVA 8 kVA 0.25 kVA 16 kVA 4 kVA 8 kVA 0.25 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as hum zoom buzz ringing hum zoom buzz ringing ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because it _______ Uses capacitive coupling Uses electric coupling Is a static device Uses inductive coupling Uses capacitive coupling Uses electric coupling Is a static device Uses inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here Adjustments in secondary voltage Adjustment in both primary and secondary Adjustment in primary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Leakage flux is small Losses are small Applied voltage and frequency are constant Iron core is used Leakage flux is small Losses are small Applied voltage and frequency are constant Iron core is used ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are magnetic losses friction and windage losses hysteresis and eddy current losses copper losses magnetic losses friction and windage losses hysteresis and eddy current losses copper losses ANSWER DOWNLOAD EXAMIANS APP
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