Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 12 8 2 4 12 8 2 4 ANSWER DOWNLOAD EXAMIANS APP
Alternators The full load efficiency of an alternator _______with increases in speed. None of the listed here Remains unchanged Decreases Increases None of the listed here Remains unchanged Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Alternators The non salient field construction is used for _______ alternator. Medium speed None of the listed here Low speed High speed Medium speed None of the listed here Low speed High speed ANSWER DOWNLOAD EXAMIANS APP
Alternators If the number of poles of an alternator is increased, the generated emf Remains the same Decreases None of the listed here Increases Remains the same Decreases None of the listed here Increases 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. Increasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Decreasing the field excitation Increasing the field excitation Decreasing the speed of prime movers Increasing the speed of prime movers Decreasing the field excitation ANSWER DOWNLOAD EXAMIANS APP
Alternators Low speed alternators are driven by ______ Hydraulic turbines Steam turbines None of the listed here Steam engine Hydraulic turbines Steam turbines None of the listed here Steam engine ANSWER DOWNLOAD EXAMIANS APP
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