Electrical Machines To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be 72° 30° 36° 18° 72° 30° 36° 18° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3% -3.33% -3% +3.33% +3% -3.33% -3% +3.33% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following load normally needs starting torque more than rated torque? Air compressors. Blowers. Centrifugal pumps. Conveyers. Air compressors. Blowers. Centrifugal pumps. Conveyers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally Cummulative compound. Differentical compound. None of these. Level Compound. Cummulative compound. Differentical compound. None of these. Level Compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine windings are full pitched either of these short pitched None of these full pitched either of these short pitched None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. Effect of armature flux on the load. Effect of field flux on the armature flux. None of these Effect of armature flux on the main field flux. Effect of armature flux on the load. Effect of field flux on the armature flux. None of these ANSWER DOWNLOAD EXAMIANS APP
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