Three Phase Induction Motors The no load speed of an induction motor depends on The number of its poles The maximum flux/poles The supply frequency Both supply frequency and number of poles The number of its poles The maximum flux/poles The supply frequency Both supply frequency and number of poles 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 ______ Remains unchanged None of the listed here Is decreased Is increased Remains unchanged None of the listed here Is decreased Is increased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in terms of Squirrel cage induction motor Slip ring induction motor None of the listed here Both squirrel cage and slip ring Squirrel cage induction motor Slip ring induction motor None of the listed here Both squirrel cage and slip ring 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 0.2 leading 0.5 leading Unity 0.2 lagging 0.2 leading 0.5 leading Unity ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input S × rotor input (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input S × rotor input 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 Direct on line By auto transformer starting Star-delta starting None of the listed here Direct on line By auto transformer starting Star-delta starting ANSWER DOWNLOAD EXAMIANS APP
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