Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Current transformer Potential transformer Auto transformer Step-up transformer Current transformer Potential transformer Auto transformer Step-up transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Inversely proportional to supply frequency None of the listed here Directly proportional to supply frequency Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here Directly proportional to supply frequency Inversely proportional to primary voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Energy efficiency None of the listed here Power efficiency Current efficiency Energy efficiency None of the listed here Power efficiency Current efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Air cooled Water cooled None of the listed here Oil cooled Air cooled Water cooled None of the listed here Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 200 W None of the listed here 100 W 400 W 200 W None of the listed here 100 W 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues? 14.1 W 1,020 W 111.5 W 0 W 14.1 W 1,020 W 111.5 W 0 W ANSWER DOWNLOAD EXAMIANS APP
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