Alternators In an alternator, the frequency of voltage generated depend on Number of poles only Both rotative speed and number of poles None of the listed here Rotative speed only Number of poles only Both rotative speed and number of poles None of the listed here Rotative speed only ANSWER DOWNLOAD EXAMIANS APP
Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 12 4 2 8 12 4 2 8 ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Strengthen the magnetic field 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 ANSWER DOWNLOAD EXAMIANS APP
Alternators A lower voltage alternator, for the same power rating, will be Operating at high rpm More efficient Larger in size More costly Operating at high rpm More efficient Larger in size More costly ANSWER DOWNLOAD EXAMIANS APP
Alternators The synchronous reactance of an alternator is generally _______ armature resistance. 5 times smaller than 10 times smaller than 10 to 100 times greater than 5 times greater than 5 times smaller than 10 times smaller than 10 to 100 times greater than 5 times greater than ANSWER DOWNLOAD EXAMIANS APP
Alternators The salient pole construction for field structure of an alternator is generally used for ______ machine. 2-pole 4-pole None of the listed here 8-pole 2-pole 4-pole None of the listed here 8-pole ANSWER DOWNLOAD EXAMIANS APP
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