Alternators A turbo alternator uses ________ Nonsalient pole field structure Salient pole field structure Rotating ac machine winding None of the listed here Nonsalient pole field structure Salient pole field structure Rotating ac machine winding None of the listed here 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 One fourth Double Half Unchanged One fourth Double Half ANSWER DOWNLOAD EXAMIANS APP
Alternators The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf. Greater than The same as None of the listed here Smaller than Greater than The same as None of the listed here Smaller than 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 Increasing the speed of prime movers Decreasing the field excitation Decreasing the speed of prime movers Increasing the field excitation Increasing the speed of prime movers Decreasing the field excitation Decreasing the speed of prime movers ANSWER DOWNLOAD EXAMIANS APP
Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Very low voltage Low voltage Extra high tension voltage Full armature voltage Very low voltage Low voltage Extra high tension voltage Full armature voltage ANSWER DOWNLOAD EXAMIANS APP
Alternators The synchronous reactance of an alternator is due to ______ Dc field excitation Leakage flux None of the listed here Armature reaction Dc field excitation Leakage flux None of the listed here Armature reaction ANSWER DOWNLOAD EXAMIANS APP
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