Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Eddy losses are totally eliminated Hysteresis losses are reduced Copper losses are negligible Saving in winding material Eddy losses are totally eliminated Hysteresis losses are reduced Copper losses are negligible Saving in winding material ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. None of the listed here Magnetically Electrically Electrically and magnetically None of the listed here Magnetically Electrically Electrically and magnetically ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is oil cooling natural air cooling Any of these air blast cooling oil cooling natural air cooling Any of these air blast cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 50% load 25% load Zero load 90% load 50% load 25% load Zero load 90% load ANSWER DOWNLOAD EXAMIANS APP
Transformers The flux in the core of a single phase transformer is _____ Purely rotating one Purely alternating one None of the listed here Partly alternating and partly rotating Purely rotating one Purely alternating one None of the listed here Partly alternating and partly rotating ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following insulating materials can withstand the highest temperature safely? Glass fibre Cellulose Asbestos Mica Glass fibre Cellulose Asbestos Mica ANSWER DOWNLOAD EXAMIANS APP
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