Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Extra high tension voltage Full armature voltage Very low voltage Low voltage Extra high tension voltage Full armature voltage Very low voltage Low voltage ANSWER DOWNLOAD EXAMIANS APP
Alternators The efficiency of the turbo-alternator _____ with increases in speed. Decreases Remians unchanged None of the listed here Increases Decreases Remians unchanged None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
Alternators Excessive windage loss and noise occur with Cylindrical rotors Either cylindrical or salient Salient pole rotors None of the listed here Cylindrical rotors Either cylindrical or salient Salient pole rotors None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators The non salient field construction is used for _______ alternator. High speed None of the listed here Medium speed Low speed High speed None of the listed here Medium speed Low speed ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of emf generated in an 8-pole alternator running at 900 rpm is ______ None of the listed here 50 Hz 60 Hz 120 Hz None of the listed here 50 Hz 60 Hz 120 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators In air-crafts, alternators have operating frequency of 60 Hz 400 Hz 500 Hz 50 Hz 60 Hz 400 Hz 500 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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