Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 12 8 4 2 12 8 4 2 ANSWER DOWNLOAD EXAMIANS APP
Alternators An alternator is somtimes called _______ generator. Synchronous Asynchronous Rosenberg None of the listed here Synchronous Asynchronous Rosenberg 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 lagging Pf becomes more leading None of the listed here Output kW will change Pf becomes more lagging Pf becomes more leading None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Strengthen the magnetic field Reduce distortion of waveform Reduce eddy current losses Cool the machine Strengthen the magnetic field Reduce distortion of waveform Reduce eddy current losses Cool the machine 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. 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 Increasing the field excitation Increasing the speed of prime movers ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, armature reaction is considered equivalent to Fictitious resistance Fictitious reactance Fictitious conductance Fictitious impedance Fictitious resistance Fictitious reactance Fictitious conductance Fictitious impedance ANSWER DOWNLOAD EXAMIANS APP
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