Transformers Which of the following insulating materials can withstand the highest temperature safely? Glass fibre Asbestos Mica Cellulose Glass fibre Asbestos Mica Cellulose ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 900 450 210 350 900 450 210 350 ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Secondary winding Low voltage winding High voltage winding Primary winding Secondary winding Low voltage winding High voltage winding Primary winding ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 9 V 0.9 V 900 V 90 V 9 V 0.9 V 900 V 90 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ None of the listed here Secondary winding only Both primary and secondary windings Primary winding only None of the listed here Secondary winding only Both primary and secondary windings Primary winding only ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Oil cooled None of the listed here Water cooled Air cooled Oil cooled None of the listed here Water cooled Air cooled ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS