Transformers When load on a transformer is decreased, ______loss is decreased Eddy current Friction Hysteresis Copper Eddy current Friction Hysteresis Copper ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High thermal conductivity Mechanical strength Low hysteresis loss High permeability High thermal conductivity Mechanical strength Low hysteresis loss High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Saving in winding material Hysteresis losses are reduced Copper losses are negligible Eddy losses are totally eliminated Saving in winding material Hysteresis losses are reduced Copper losses are negligible Eddy losses are totally eliminated ANSWER DOWNLOAD EXAMIANS APP
Transformers We can find _______of the transformer with open circuit test. Turn ratio Total equivalent leakage reactance Copper losses Total equivalent resistance Turn ratio Total equivalent leakage reactance Copper losses Total equivalent resistance ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which has core of stainless steel and winding of pure copper metal a common core for its primary and secondary windings interleaved primary and secondary windings no losses and magnetic leakage core of stainless steel and winding of pure copper metal a common core for its primary and secondary windings interleaved primary and secondary windings no losses and magnetic leakage ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of colling a power transformer is Oil cooling Air blast cooling Natural air cooling Any of the listed here Oil cooling Air blast cooling Natural air cooling Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
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