Alternators Hydrogen is used in large alternators mainly to Cool the machine Strengthen the magnetic field Reduce eddy current losses Reduce distortion of waveform Cool the machine Strengthen the magnetic field Reduce eddy current losses Reduce distortion of waveform ANSWER DOWNLOAD EXAMIANS APP
Alternators For producing an emf of given frequency, an alternator will run at greatest speed for _____ poles. 2 4 12 8 2 4 12 8 ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator the armature reaction is mainly influenced by Total current drawn Speed of the alternator The power factor of the load Short circuit ratio Total current drawn Speed of the alternator The power factor of the load Short circuit ratio ANSWER DOWNLOAD EXAMIANS APP
Alternators A two pole alternator is running at 1500 rpm. Its angular velocity is ______ 118 rad/s 192 rad/s 157 rad/s 212 rad/s 118 rad/s 192 rad/s 157 rad/s 212 rad/s ANSWER DOWNLOAD EXAMIANS APP
Alternators For the same rating, the size of low speed alternator is ______that of high speed alternator. About the same as None of the listed here Less than More than About the same as None of the listed here Less than More than ANSWER DOWNLOAD EXAMIANS APP
Alternators Regulation of alternator supplying reaistive or inductive load is Always positive Always negative Either positive or negative None of the listed here Always positive Always negative Either positive or negative None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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