• 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
A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power?

 1820W
 1920W
 2000W
 1450W

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The interpoles in dc machines have a tapering shape in order to

 reduce the saturation in the interpole
 reduce the overall weight
 increase the acceleration of commutation
 economise on the material required for interpoles and their windings

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by

 Blv.
 Blv2.
 Bl2v.
 Bl2v2.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be

 6 V
 somewhat more than 230 V
 somewhat less than 230 V
 230 V

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Inter pole winding is connected in-------------------------- ?

 series with main poles
 parallel with main poles
 parallel with armature
 series with armature

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is

 2%
 4%
 5%
 25%

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
↑