Transformers The temperature rise of transformer is directly proportional to _______ Reactive power Apparent power None of the listed here Leakage reactance Reactive power Apparent power None of the listed here Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Current efficiency None of the listed here Power efficiency Energy efficiency Current efficiency None of the listed here Power efficiency Energy efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is approximately equal to one great than one less than one None of these approximately equal to one great than one less than one None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Is negligible at full load Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Produces mutually induced emf Is negligible at full load ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is Any of these air blast cooling natural air cooling oil cooling Any of these air blast cooling natural air cooling oil cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Step-up transformer Potential transformer Auto transformer Current transformer Step-up transformer Potential transformer Auto transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
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