Electrical Machines Wave winding is prefered for which of the following rating? low current and low voltage high current and low voltage low current and high voltage high current and high voltage low current and low voltage high current and low voltage low current and high voltage high current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 2. 4. 6. 8. 2. 4. 6. 8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to absorb moisture from air entering in transformer. filter the transformer oil. provide cold air in transformer. absorb moisture of air during breathing. absorb moisture from air entering in transformer. filter the transformer oil. provide cold air in transformer. absorb moisture of air during breathing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same? 0 1 any of the above 0.5 0 1 any of the above 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and flux of a DC motor are held constant and voltage applied across it armature is increased by 5%, the speed of the motor will Depends on other factor. Reduce by 5%. Increase by 5%. Remain unchanged. Depends on other factor. Reduce by 5%. Increase by 5%. Remain unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is infinite value maximum any of the above zero infinite value maximum any of the above zero ANSWER DOWNLOAD EXAMIANS APP
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