Alternators High speed alternators are driven by _____. Hydraulic turbines Steam turbines Diesel engines None of the listed here Hydraulic turbines Steam turbines Diesel engines None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Hydrogen is used in large alternators mainly to Reduce distortion of waveform Reduce eddy current losses Strengthen the magnetic field Cool the machine Reduce distortion of waveform Reduce eddy current losses Strengthen the magnetic field Cool the machine ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the effect of armature reaction is minimum at power factor of ______ Unity 0.866 lagging 0.866 leading 0.5 lagging Unity 0.866 lagging 0.866 leading 0.5 lagging ANSWER DOWNLOAD EXAMIANS APP
Alternators A two pole alternator is running at 1500 rpm. Its angular velocity is ______ 118 rad/s 157 rad/s 192 rad/s 212 rad/s 118 rad/s 157 rad/s 192 rad/s 212 rad/s ANSWER DOWNLOAD EXAMIANS APP
Alternators The magnitude of emf generated by an alternators depends on ______ Number of poles Rotor speed All of the listed here Flux per pole Number of poles Rotor speed All of the listed here Flux per pole ANSWER DOWNLOAD EXAMIANS APP
Alternators Voltage drop in an alternator when under load is due to ______ Armatute reaction Armature resistance Armature reactance All of the listed here Armatute reaction Armature resistance Armature reactance All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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