Electrical Engineering Questions And Answers :: Polyphase Induction Motors: part3



Electrical Engineering : Polyphase Induction Motors QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.In the squirrel-cage induction motor the rotor slots are usually given slight skew

to reduce the magnetic hum and locking tendency of the rotor
to increase the tensile strength of the rotor bars
to ensure easy fabrication
none of the above

22.A change of 4% of supply voltage to an induction motor will produce a change of appromimately

4% in the rotor torque
8% in the rotor torque
12% in the rotor torque
16% in the rotor torque

More Polyphase Induction Motors QUESTIONS AND ANSWERS available in next pages

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