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

Electrical Machines

Electrical Machines
In a synchronous motor, damper windings are provided on

  pole faces.
  rotor shaft.
None of these
  stator frame.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be

 equal to core loss.
  more than core loss.
 less than core loss.
 zero.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The functions of inter poles are

 reduce cross magnetization effect and improve commutation
 nullify reactance voltage and improve the commutation.
 both 1 and 2
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
At the instant of starting, the per unit slip of 3 - Φ induction motor is

  1.0.
  0.5.
  0.05.
  0.1.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A triangular mmf wave is produced in the air gap of an electric machine. Such wave is produced by

 stator of a induction machine.
 rotor of a dc machine.
 rotor of an synchronous machine.
 stator of a dc machine.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Armature reaction effect is more in which of the following methods?

 armature resistance control
 same in both methods
None of these
 field weakening method

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electrical Machines

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
↑