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? 2880 rpm 1000 rpm 1440 rpm 730 rpm 2880 rpm 1000 rpm 1440 rpm 730 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The number of slip rings on a squirrel cage induction motor is usually One Two Three None One Two Three None ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. Large slip Low resistance High reactance high resistance Large slip Low resistance High reactance high resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a 3-phase induction motor is _______ supply voltage. Directly proportional to sqaure of Directly proportional to Independent of None of the listed here Directly proportional to sqaure of Directly proportional to Independent of None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ Magnitude of supply voltage Supply frequency Number of poles Phase sequence of supply voltage Magnitude of supply voltage Supply frequency Number of poles Phase sequence of supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The stator of a three phase induction motor produces _______ magnetic field. Steady Alternating None of the listed here Rotating Steady Alternating None of the listed here Rotating ANSWER DOWNLOAD EXAMIANS APP
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