Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 12 4 8 2 12 4 8 2 ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Unchanged Double Half One fourth Unchanged Double Half One fourth ANSWER DOWNLOAD EXAMIANS APP
Alternators Modern 3-phase alternator of a central power station will have generated voltage of 400 V 230 V 132 kV 11 kV 400 V 230 V 132 kV 11 kV ANSWER DOWNLOAD EXAMIANS APP
Alternators For the same power rating, an alternator is ______that of a dc generator. Larger in size than None of the listed here Of the same size as Smaller in size than Larger in size than None of the listed here Of the same size as Smaller in size than ANSWER DOWNLOAD EXAMIANS APP
Alternators An under excited alternator supplies _______ Leading VAR No reactive power Lagging VAR None of the listed here Leading VAR No reactive power Lagging VAR None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Low speed alternators are driven by ______ Steam engine None of the listed here Hydraulic turbines Steam turbines Steam engine None of the listed here Hydraulic turbines Steam turbines ANSWER DOWNLOAD EXAMIANS APP
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