Alternators The efficiency of the turbo-alternator _____ with increases in speed. Remians unchanged None of the listed here Increases Decreases Remians unchanged None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Alternators Modern 3-phase alternator of a central power station will have generated voltage of 11 kV 132 kV 400 V 230 V 11 kV 132 kV 400 V 230 V ANSWER DOWNLOAD EXAMIANS APP
Alternators The losses in an alternator are the same as in A rectifier A transformer None of the listed here A dc machine A rectifier A transformer None of the listed here A dc machine ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of the system with which several alternators are paralleled can be increased of by simultaneously _______ of all generators. Decreasing the speed of prime movers Decreasing the field excitation Increasing the speed of prime movers Increasing the field excitation Decreasing the speed of prime movers Decreasing the field excitation Increasing the speed of prime movers Increasing the field excitation ANSWER DOWNLOAD EXAMIANS APP
Alternators The dark and bright lamp method is used for Phase sequence Balancing of load Transfer of load Synchronizing Phase sequence Balancing of load Transfer of load Synchronizing ANSWER DOWNLOAD EXAMIANS APP
Alternators A lower voltage alternator, for the same power rating, will be More costly More efficient Operating at high rpm Larger in size More costly More efficient Operating at high rpm Larger in size ANSWER DOWNLOAD EXAMIANS APP
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