Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have Zero frequency The same frequency as the slip frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. Zero frequency The same frequency as the slip frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of an induction motor runs at Synchronous speed Above synchronous speed Below synchronous speed Any of the above Synchronous speed Above synchronous speed Below synchronous speed Any of the above ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased Copper loss will reduce The power factor will be low Bearing friction will reduce Windage losses will be more Copper loss will reduce The power factor will be low Bearing friction will reduce Windage losses will be more ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The power factor of an induction motor under no load conditions will be closer to 0.5 leading 0.2 leading Unity 0.2 lagging 0.5 leading 0.2 leading Unity 0.2 lagging ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In induction motor, percentage slip depends on Supply voltage None of these Copper losses in motor Supply frequency Supply voltage None of these Copper losses in motor Supply frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For the same kVA rating, the leakage flux in induction motor is _______ that of transformer. More than About the same None of the listed here Less than More than About the same None of the listed here Less than ANSWER DOWNLOAD EXAMIANS APP
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