• 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
The efficiency of a properly designed synchronous motor will usually fall in range

99 to 99.5%
75 to 80%
60 to 70%
85 to 95%

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
In a synchronous motor, the rotor copper loss are met by ______

Motor input
Dc source
Armature input
Supply lines

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
The magnitude of field flux in a 3-phase synchronous motor

Remains constant at all loads
Varies with speed
Varies with the load
Varies with power factor

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
In a 3-phase synchronous motor, the negative phase sequence exists when the motor is

over-loaded
supplied with unbalanced voltage
None of these
under-loaded

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load.

Decreases
Increases
Remains unchanged
None of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
The pull out torque of a practical synchronous motor will occur when the torque angle is about _____

30°
0°
45°
75°

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
↑