Three Phase Induction Motors Less maintenance troubles are experienced in terms of Slip ring induction motor None of the listed here Squirrel cage induction motor Both squirrel cage and slip ring Slip ring induction motor None of the listed here Squirrel cage induction motor Both squirrel cage and slip ring ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip of an induction motor is negative when Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction None of these Magnetic field and rotor rotate in opposite direction Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction None of these Magnetic field and rotor rotate in opposite direction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ Lower cage winding has low reactance None of the listed here Outer cage winding has good pf Lower winding is more effective Lower cage winding has low reactance None of the listed here Outer cage winding has good pf Lower winding is more effective ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is preferred to a dc motor because it _______ Provides fine speed control Has simple and rugged construction None of the listed here Provides high starting torque Provides fine speed control Has simple and rugged construction None of the listed here Provides high starting torque ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 4 poles 8 poles 2 poles 6 poles 4 poles 8 poles 2 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ S-1 None of the listed here 1+S 1-S S-1 None of the listed here 1+S 1-S ANSWER DOWNLOAD EXAMIANS APP
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