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 In a squirrel cage induction motor, the number of stator slots is _______ rotor slots. Always greater than the number of Either more or less than the number of Always eqaul to the number of Always less than the number of Always greater than the number of Either more or less than the number of Always eqaul to the number of Always less than the number of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Hyperbola Straight line Parabola Rectangular parabola Hyperbola Straight line Parabola Rectangular parabola ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased at starting Increased under running conditions Decreased at starting None of the listed here Increased at starting Increased under running conditions Decreased at starting None of the listed here 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 2 Hz 50 Hz 200 Hz 20 Hz 2 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The crawling in an induction motor is caused by Harmonics developed in the rotor High loads Improper design of machine Low voltage supply Harmonics developed in the rotor High loads Improper design of machine Low voltage supply ANSWER DOWNLOAD EXAMIANS APP
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