Electrical Engineering Questions And Answers :: Polyphase Induction Motors: part1

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Electrical Engineering : Polyphase Induction Motors QUESTIONS AND ANSWERS :: part1 : 6 to 10

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

6.An induction motor with 1000 r.p.m. speed will have

8 poles
6 poles
4 poles
2 poles

7.In case of the induction motors the torque is

inversely proportional to (Vslip)
directly proportional to (slip)2
inversely proportional to slip
directly proportional to slip

8.The term 'cogging' is associated with

three phase transformers
compound generators
D.C. series motors
induction motors

9.Star-delta starting of motors is not possible in case of

single phase motors
variable speed motors
low horse power motors
high speed motors

10.Slip rings are usually made of

copper
carbon
phospor bronze
aluminium

More Polyphase Induction Motors QUESTIONS AND ANSWERS available in next pages

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