• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Three Phase Induction Motors

Three Phase Induction Motors
The synchronous speed of a 3-phase induction motor having 20 poles and connected to a 50 Hz source is _____

1200 rpm
300 rpm
600 rpm
1000 rpm

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______

None of the listed here
40%
90%
65%

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The 3- phase induction motor is so designed that the rotor should have ______ under running conditions.

High reactance
Large slip
high resistance
Low resistance

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
At starting of a double squirrel cage induction motor _______

Outer cage winding has good pf
None of the listed here
Lower cage winding has low reactance
Lower winding is more effective

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The term cogging is associated with

Induction motors
Compound generators
Dc series motors
Three phase transformer

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The rotor winding of a 3phase wound rotor induction motor is generally _______ connected.

Star
Delta
Partly star and partly delta
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Three Phase Induction Motors

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑