Three Phase Induction Motors In an induction motor the relationship between stator slots and rotor slots is that Stator slots are equal to rotor slots None of the listed here Stator slots are exact multiple of rotor slots Stator slots are not exact multiple of rotor slots Stator slots are equal to rotor slots None of the listed here Stator slots are exact multiple of rotor slots Stator slots are not exact multiple of rotor slots ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have The same phase as the rotor e.m.f. High value for the satisfactory speed control The same frequency as the slip frequency Zero frequency The same phase as the rotor e.m.f. High value for the satisfactory speed control The same frequency as the slip frequency Zero frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ High rotor resistance is required during running Less costly motor is not required Speed control is required High starting torque is required High rotor resistance is required during running Less costly motor is not required Speed control is required High starting torque is required ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased Windage losses will be more Bearing friction will reduce The power factor will be low Copper loss will reduce Windage losses will be more Bearing friction will reduce The power factor will be low Copper loss will reduce ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is inversely proportional to rotor reactance at standstill Directly proportional to rotor resistance None of the listed here Inveresly proportional to supply voltage inversely proportional to rotor reactance at standstill Directly proportional to rotor resistance None of the listed here Inveresly proportional to supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of an induction motor is maximum when rotor resistance per phase is _____ rotor reactance / phase. Equal to Four times None of the listed here Two times Equal to Four times None of the listed here Two times ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS