Transformers Natural air cooling is generally restricted for transformers up to 5 MVA 50 MVA 15 MVA 1.5 MVA 5 MVA 50 MVA 15 MVA 1.5 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load remains constant None of these load on it increases load on it decreases load remains constant None of these load on it increases load on it decreases ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 20 V 18 V 2 V 180 V 20 V 18 V 2 V 180 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine temperature stray losses None of these all-day efficiency temperature stray losses None of these all-day efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary current to primary current secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary current to primary current secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 400 W None of the listed here 100 W 200 W 400 W None of the listed here 100 W 200 W ANSWER DOWNLOAD EXAMIANS APP
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