• 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
The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________.

 6.
 4.
  8.
  2.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Capacitor in split phase induction motor is used to

 reduce the harmonics.
 improve the power factor.
 start the motor.
 improve the starting torque.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a DC motor can be determined by

 Fleming's right hand rule.
  Fleming's left hand rule.
 Ampere's law.
 Lenz's law.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
On what factors the speed of dc motor depends?

 Armature current Ia.
 All of these.
 Field flux.
 Applied voltage.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The magnetic field which initially induces emf in the armature in a self excited DC generator is because of

None of these
 armature reaction.
  residual magnetism.
  permanent magnets.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
DC generators are usually designed to develop armature voltages not exceeding 650 V because of the limitations imposed by

 commutator
 field winding
 starters
 armature winding

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
↑