Transformers When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current none of above will happen cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current none of above will happen cool as there is no secondary current ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ Low voltage winding None of the listed here High voltage winding Either high or low voltage winding Low voltage winding None of the listed here High voltage winding Either high or low voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Auto transformer Potential transformer Current transformer Step-up transformer Auto transformer Potential transformer Current transformer Step-up transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are much higher about the same somewhat smaller much smaller much higher about the same somewhat smaller much smaller ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer is always a high voltage winding could either be a low voltage or high voltage winding is always a low voltage winding None of these is always a high voltage winding could either be a low voltage or high voltage winding is always a low voltage winding None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 250 kVA 1000 kVA 500 kVA 3000 kVA 250 kVA 1000 kVA 500 kVA 3000 kVA ANSWER DOWNLOAD EXAMIANS APP
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