Three Phase Induction Motors The rotor of induction motor Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing supply frequency Changing winding resistance Changing number of poles Reducing supply voltage Changing supply frequency Changing winding resistance Changing number of poles Reducing supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 4 poles 2 poles 6 poles 8 poles 4 poles 2 poles 6 poles 8 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 30 to 50% 15 to 20 % 5% 10 to 15% 30 to 50% 15 to 20 % 5% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 20 to 30 % 2 to 5 % None of the listed here 10 to 20 % 20 to 30 % 2 to 5 % None of the listed here 10 to 20 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in case of Both (A) and (B) Squirrel cage induction motor Slip ring induction motor None of these Both (A) and (B) Squirrel cage induction motor Slip ring induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
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