Transformers Leakage flux in a transformer occurs because Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal Iron core has high permeability Transformer is not an efficient device Air is not a good magnetic insulator Applied voltage is sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Zoom Magnetostriction Hum Boo Zoom Magnetostriction Hum Boo ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Power transformer Voltage transformer Current transformer Auto transformer Power transformer Voltage transformer Current transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. The supply frequency Thickness of core lamination Square of thickness of core lamination The flux density in the core The supply frequency Thickness of core lamination Square of thickness of core lamination The flux density in the core ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine temperature stray losses all-day efficiency None of these temperature stray losses all-day efficiency None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is Any of these natural air cooling air blast cooling oil cooling Any of these natural air cooling air blast cooling oil cooling ANSWER DOWNLOAD EXAMIANS APP
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