Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 90% None of the listed here 65% 40% 90% None of the listed here 65% 40% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque in an induction motor depends on Rotor inductive reactance Frequency All of the listed here Square of supply voltage Rotor inductive reactance Frequency All of the listed here Square of supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased 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 Windage losses will be more Bearing friction will reduce ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Rotor emf Rotor current Rotor power factor Shaft diameter Rotor emf Rotor current Rotor power factor Shaft diameter ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Star Partly star and partly delta None of the listed here Delta Star Partly star and partly delta None of the listed here Delta ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ None of the listed here Supplying a variable resistive load Short-circuited Open circuited None of the listed here Supplying a variable resistive load Short-circuited Open circuited ANSWER DOWNLOAD EXAMIANS APP
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