Transformers The open circuit test on a transformer gives _______ Copper losses Friction losses Iron losses Total losses Copper losses Friction losses Iron losses Total losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Voltage transformer Auto transformer Current transformer Power transformer Voltage transformer Auto transformer Current transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 100 W 200 W 400 W 50 W 100 W 200 W 400 W 50 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer could either be a low voltage or high voltage winding None of these is always a low voltage winding is always a high voltage winding could either be a low voltage or high voltage winding None of these is always a low voltage winding is always a high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Leakage reactance Iron losses Winding resistance Copper losses Leakage reactance Iron losses Winding resistance Copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Resistance of the two winding are equal None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding Resistance of the two winding are equal None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding ANSWER DOWNLOAD EXAMIANS APP
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