Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ Direct on line By auto transformer starting None of the listed here Star-delta starting Direct on line By auto transformer starting None of the listed here Star-delta starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ None of the listed here 25 Hz 60 Hz 50 Hz None of the listed here 25 Hz 60 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The power factor of an induction motor under no load conditions will be closer to 0.2 lagging Unity 0.2 leading 0.5 leading 0.2 lagging Unity 0.2 leading 0.5 leading 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 Squirrel cage as well as slip ring induction motor None of these Slip ring motor only but not with squirrel cage induction motor Squirrel cage induction motor only but not with slip ring motor Squirrel cage as well as slip ring induction motor None of these Slip ring motor only but not with squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is so called because its operation depends on Self induction Mutual induction Hysteresis Eddy currents Self induction Mutual induction Hysteresis Eddy currents ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ 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 Increased at starting ANSWER DOWNLOAD EXAMIANS APP
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