• 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
Which of the following will vary the maximum torque?

 rotor resistance R
 rotor reactance X
 both 1 and 2
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A three phase induction motor has a synchronous speed of 1500 rpm the machine runs at 1460 rpm at a particular load. The slip at this load is ___________.

  30 %.
 1.5 %.
  2.67 %.
 5 %.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC machine yoke offers

 produce working flux
 mechanical protection to the machine
 flux path completion
 both A and B

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Magnetic field of a DC generator is produced by what?

 None of the options.
 Both B and C.
 Permanent magnets.
  Electromagnets.

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A small air gap in poly phase induction motor helps to

  reduce magnetizing current.
 reduce chance of crawling.
 reduce chance of cogging.
 increase starting torque.

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
↑