Three Phase Induction Motors If the air gap between the rotor and stator of a 3-phase induction motor is increased, then_______ Leakage reactances are increased Leakage reactances are decreased No load current is decreased None of the listed here Leakage reactances are increased Leakage reactances are decreased No load current is decreased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If any two phases for an induction motor are interchanged The motor will burn The motor will not run The motor will run at reduced speed The motor will run in reverse direction The motor will burn The motor will not run The motor will run at reduced speed The motor will run in reverse direction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ By auto transformer starting None of the listed here Direct on line Star-delta starting By auto transformer starting None of the listed here Direct on line Star-delta starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Decreasing rotor resistance Increasing rotor resistance None of the listed here Increasing rotor reactance Decreasing rotor resistance Increasing rotor resistance None of the listed here Increasing rotor reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors 5 H.P., 50Hz, 3-phase, 440 V, induction motors are available for the following r.p.m. Which motor will be the costliest? 1000 rpm 1440 rpm 730 rpm 2880 rpm 1000 rpm 1440 rpm 730 rpm 2880 rpm 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
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