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 Reducing supply voltage Changing number of poles Changing supply frequency Changing winding resistance Reducing supply voltage Changing number of poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Which of the following component is usually fabricated out of silicon steel? None of these Shaft Bearings Stator core None of these Shaft Bearings Stator core ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The power factor of an induction motor under no load conditions will be closer to 0.5 leading 0.2 lagging 0.2 leading Unity 0.5 leading 0.2 lagging 0.2 leading Unity ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip rings are usually made of Aluminium Copper Phospor bronze Carbon Aluminium Copper Phospor bronze Carbon ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor, no load the slip is generally 2% 1.5 % 4% Less than 1% 2% 1.5 % 4% Less than 1% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The efficiency of an induction motor can be expected to be nearly 80 to 90% 95 to 98 % 99% 60 to 90% 80 to 90% 95 to 98 % 99% 60 to 90% ANSWER DOWNLOAD EXAMIANS APP
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