• 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 approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______

65%
90%
40%
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
3-phase wound rotor morors are also called _____ motors.

Commutator
Synchronous
Slip ring
Series

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The rotor of induction motor

None of the listed here
Insufficient data
Always revolves in the direction of stator flux
Always revolves in the direction opposite to stator flux

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____

50 Hz
25 Hz
60 Hz
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The no load speed of an induction motor depends on

Both supply frequency and number of poles
The supply frequency
The maximum flux/poles
The number of its poles

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
For higher efficiency of 3-phase induction motor, the slip should be

Large
1
Very large
As small as possible

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
↑