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

Synchronous Motors

Synchronous Motors
A synchronous motor delivers reactive power when ______

Normally excited
Under excited
Over excited
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
In a synchronous motor, the magnitude of stator back emf depends on _____

Dc excitation only
Load on the motor
Speed of the rotor
Both the speed and rotor flux

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
For power factor correction, synchronous motors operate at

no-load and greatly over-excited fields
normal load with minimum excitation
no-load and under-excited fields
normal load with zero excitation

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
If one phase of a 3 phase synchronous motor is short circuited, motor

Will refused ro start
Will not come upto speed
Will overheat in spots
Will fail to pull into step

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
The armature current of the synchronous motor has higher values for

Both higher and low excitation
Low excitation only
Higher excitation only
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
The induced e.m.f. in a synchronous motor working on leading power factor will be

less than the supply voltage
equal to the supply voltage
more than the supply voltage
None of these

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Synchronous 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
↑