Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing number of poles Changing winding resistance Reducing supply voltage Changing supply frequency Changing number of poles Changing winding resistance Reducing supply voltage Changing supply frequency 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 _____ 2400 rpm 1600 rpm 400 rpm 1200 rpm 2400 rpm 1600 rpm 400 rpm 1200 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The frame of an induction motor is usually made of Aluminium Bronze Cast iron Silicon steel Aluminium Bronze Cast iron Silicon steel ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ Practically zero 0.5 1 0.2 Practically zero 0.5 1 0.2 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a 3 phase induction motor, the rotor speed is _____ the synchronous speed. Greater than None of the listed here Smaller than Equal to Greater than None of the listed here Smaller than Equal to ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors 3-phase wound rotor morors are also called _____ motors. Series Synchronous Commutator Slip ring Series Synchronous Commutator Slip ring ANSWER DOWNLOAD EXAMIANS APP
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