Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is leading unity lagging zero leading unity lagging zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Current in a coil undergoing commutation is not able to get reversed completely by the end of commutation period. It is due to armature emf. None of these reactance voltage induced in the coil. coil resistance. armature emf. None of these reactance voltage induced in the coil. coil resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is R = S.X 0.5 lagging unity 0.707 lagging zero R = S.X 0.5 lagging unity 0.707 lagging zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 6 / 7. 4 / 5. 5 / 6. 2 / 3. 6 / 7. 4 / 5. 5 / 6. 2 / 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? slip ring induction motor None of these either of these squirrel cage induction motor slip ring induction motor None of these either of these squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reactive power generated or delivered significantly depends on load angle. frequency. excitation. both 1 and 2. load angle. frequency. excitation. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
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