Alternators Hydrogen is used in large alternators mainly to Reduce distortion of waveform Cool the machine Reduce eddy current losses Strengthen the magnetic field Reduce distortion of waveform Cool the machine Reduce eddy current losses Strengthen the magnetic field ANSWER DOWNLOAD EXAMIANS APP
Alternators In aircrafts, alternators have operating frequency of 60 Hz 800 Hz 50 Hz 400 Hz 60 Hz 800 Hz 50 Hz 400 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators When the speed of an alternator is reduced by half, the generated emf will become Four times Twice One-fourth Half Four times Twice One-fourth Half ANSWER DOWNLOAD EXAMIANS APP
Alternators A lower voltage alternator, for the same power rating, will be Operating at high rpm More costly More efficient Larger in size Operating at high rpm More costly More efficient Larger in size ANSWER DOWNLOAD EXAMIANS APP
Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 4 12 2 8 4 12 2 8 ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of emf generated in an 8-pole alternator running at 900 rpm is ______ 50 Hz None of the listed here 60 Hz 120 Hz 50 Hz None of the listed here 60 Hz 120 Hz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS