• 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
Oil is provided in an oil filled transformer for

 lubrication.
  both cooling and insulation.
  insulating.
 cooling.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a dc machine 72 number of coils are used. Find the number of commutator segments required?

 72
 36
 74
 37

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a transformer operating at constant voltage if the input frequency increases, the core loss

 increase.
None of these
 remains constant.
 decrease.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a transformer the magnetic coupling between the primary and secondary winding can be increased by

 using the magnetic core of low reluctance.
 using transformer oil of better quality.
 using soft material for winding.
 increasing the number of turns.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC generator the emf generated by the armature is maximum when

 shaft rotation is high.
 induced voltage is high.
  rate of change of flux is maximum.
 rate of change of flux is minimum.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
At slip s = 1 torque developed in machine is

  electromagnetic torque.
  maximum torque.
  starting torque.
  none.

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
↑