Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ None of the listed here 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 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Reduced voltage starter can be used with Squirrel cage induction motor only but not with slip ring motor None of these Squirrel cage as well as slip ring induction motor Slip ring motor only but not with squirrel cage induction motor Squirrel cage induction motor only but not with slip ring motor None of these Squirrel cage as well as slip ring induction motor Slip ring motor only but not with squirrel cage induction motor 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 Number of poles Phase sequence of supply voltage Supply frequency Magnitude of supply voltage Number of poles Phase sequence of supply voltage Supply frequency 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 50 Hz 2 Hz 20 Hz 200 Hz 50 Hz 2 Hz 20 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor on load resemble those of a transformer whose secondady is _______ Short circuited Open circuited Supplying a variable resistive load None of the listed here Short circuited Open circuited Supplying a variable resistive load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased Windage losses will be more The power factor will be low Bearing friction will reduce Copper loss will reduce Windage losses will be more The power factor will be low Bearing friction will reduce Copper loss will reduce ANSWER DOWNLOAD EXAMIANS APP
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