Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ None of the listed here Star-delta starting By auto transformer starting Direct on line None of the listed here Star-delta starting By auto transformer starting Direct on line ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of an induction motor is maximum when rotor resistance per phase is _____ rotor reactance / phase. None of the listed here Four times Equal to Two times None of the listed here Four times Equal to Two times ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is preferred to a dc motor because it _______ 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 Provides fine speed control Has simple and rugged construction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The number of slip rings on a squirrel cage induction motor is usually Two None Three One Two None Three One ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ Is decreased Remains unchanged None of the listed here Is increased Is decreased Remains unchanged None of the listed here Is increased ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS