Three Phase Induction Motors 5 H.P., 50Hz, 3-phase, 440 V, induction motors are available for the following r.p.m. Which motor will be the costliest? 1000 rpm 1440 rpm 730 rpm 2880 rpm 1000 rpm 1440 rpm 730 rpm 2880 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 200 Hz 20 Hz 50 Hz 2 Hz 200 Hz 20 Hz 50 Hz 2 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The induction motor has lagging power factor during None of the listed here Both starting and operation Starting only Operation only None of the listed here Both starting and operation Starting only Operation only ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The number of slip rings on a squirrel cage induction motor is usually Two Three One None Two Three One None ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is 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 inversely proportional to rotor reactance at standstill Directly proportional to rotor resistance ANSWER DOWNLOAD EXAMIANS APP
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