Three Phase Induction Motors The good power factor of an induction motor can be achieved if the average flux density in the air gap is Small Large Absent Infinity Small Large Absent Infinity ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is Inveresly proportional to supply voltage None of the listed here inversely proportional to rotor reactance at standstill Directly proportional to rotor resistance Inveresly proportional to supply voltage None of the listed here inversely proportional to rotor reactance at standstill Directly proportional to rotor resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Reduced voltage starter can be used with Squirrel cage as well as slip ring induction motor Slip ring motor only but not with squirrel cage induction motor None of these Squirrel cage induction motor only but not with slip ring motor Squirrel cage as well as slip ring induction motor Slip ring motor only but not with squirrel cage induction motor None of these Squirrel cage induction motor only but not with slip ring motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Size of a high speed motor as compared to low speed motor for the same HP will be Smaller Any of the listed here Same Bigger Smaller Any of the listed here Same Bigger ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing supply frequency Changing winding resistance Changing number of poles Reducing supply voltage Changing supply frequency Changing winding resistance Changing number of poles Reducing supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The frequency of rotor current in a 6-pole , 50 Hz, 3-phase induction motor running at 950 rpm is 0.05 Hz 1.5 Hz 5 Hz 2.5 Hz 0.05 Hz 1.5 Hz 5 Hz 2.5 Hz ANSWER DOWNLOAD EXAMIANS APP
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