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 approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 40% None of the listed here 65% 90% 40% None of the listed here 65% 90% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor on load resemble those of a transformer whose secondady is _______ Supplying a variable resistive load Short circuited Open circuited None of the listed here Supplying a variable resistive load Short circuited Open circuited None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In induction motor, percentage slip depends on Supply frequency Copper losses in motor Supply voltage None of these Supply frequency Copper losses in motor Supply voltage None of these ANSWER DOWNLOAD EXAMIANS APP
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 2880 rpm 730 rpm 1440 rpm 1000 rpm 2880 rpm 730 rpm 1440 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors 3-phase wound rotor morors are also called _____ motors. Commutator Series Slip ring Synchronous Commutator Series Slip ring Synchronous ANSWER DOWNLOAD EXAMIANS APP
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