Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Low voltage Extra high tension voltage Full armature voltage Very low voltage Low voltage Extra high tension voltage Full armature voltage Very low voltage ANSWER DOWNLOAD EXAMIANS APP
Alternators Turbo alternators have rotors of _______ Same diameter and axial length Large diameter and small axial length Small diameter and long axial length Large diameter and long axial length Same diameter and axial length Large diameter and small axial length Small diameter and long axial length Large diameter and long axial length ANSWER DOWNLOAD EXAMIANS APP
Alternators In aircrafts, alternators have operating frequency of 800 Hz 60 Hz 50 Hz 400 Hz 800 Hz 60 Hz 50 Hz 400 Hz ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed at which a 6-pole alternator should be driven to generate 50 cycles per second is _______ 1500 rpm 500 rpm 1000 rpm None of the listed here 1500 rpm 500 rpm 1000 rpm None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators If the excitation of an alternator operating in parallel with other alternators is decreased, its ______ Output kW will change Pf becomes more leading Pf becomes more lagging None of the listed here Output kW will change Pf becomes more leading Pf becomes more lagging None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators The disadvantaged of a short pitched coil is that _______ None of the listed here Waveform becomes non-sinusoidal Harmonics are introduced Voltage round the coil is reduced None of the listed here Waveform becomes non-sinusoidal Harmonics are introduced Voltage round the coil is reduced ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS