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 less than the number of Always eqaul to the number of Always greater than the number of Either more or less than the number of Always less than the number of Always eqaul to the number of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ Speed control is required High rotor resistance is required during running Less costly motor is not required High starting torque is required Speed control is required High rotor resistance is required during running Less costly motor is not required High starting torque is required 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? 1440 rpm 1000 rpm 2880 rpm 730 rpm 1440 rpm 1000 rpm 2880 rpm 730 rpm 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 None of the listed here Remains unchanged Is increased Is decreased None of the listed here Remains unchanged Is increased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The cogging of an induction motor can be avoided by Proper ventilation Using DOL starter Having number of rotor slots more or less than the number of stator slots Auto transformer starter Proper ventilation Using DOL starter Having number of rotor slots more or less than the number of stator slots Auto transformer starter ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors One of the speeds of a 2 speed squirrel cage induction motor is 800 rpm. The other speed will be _____ 1600 rpm 1200 rpm 2400 rpm 400 rpm 1600 rpm 1200 rpm 2400 rpm 400 rpm ANSWER DOWNLOAD EXAMIANS APP
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