• 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 ______

40%
90%
None of the listed here
65%

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The good power factor of an induction motor can be achieved if the average flux density in the air gap is

Large
Small
Infinity
Absent

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
In an induction motor the relationship between stator slots and rotor slots is that

Stator slots are exact multiple of rotor slots
None of the listed here
Stator slots are not exact multiple of rotor slots
Stator slots are equal to rotor slots

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The speed of a squirrel-cage induction motor can be controlled by all of the following except

Changing winding resistance
Changing number of poles
Reducing supply voltage
Changing supply frequency

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
The starting torque of a squirrel cage induction motor is

Negligible
Same as full load torque
Slightly more than full load torque
Low

ANSWER DOWNLOAD EXAMIANS APP

Three Phase Induction Motors
In an induction motor if air gap increased

Windage losses will be more
The power factor will be low
Copper loss will reduce
Bearing friction will reduce

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
↑