• 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
Flux density under leading pole tips in case of generator will

 either increase or decrease
 decrease
 increase
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of following winding is connected in series with armature winding of DC machine?

 Auxiliary winding.
 Commutating pole winding.
 Compensating winding.
 Both Compensating and Commutating pole winding.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If Kh is hysteresis constant, f is supply frequency, Bm maximum flux density in core of transformer, the expression of hysteresis loss in transformer, is given by

 KhfBm.
  KhfBm1.6.
 Khf2Bm1.6.
 KhfBm3.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In induction motors, there is large decrease in maximum power factor when the dispersion coefficient is ________________.

 kept constant to certain value.
 remains same.
 decreased.
  increased.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The full load copper loss and iron loss of transformer are 6400W and 5000W respectively. The copper loss and iron loss at half load will be respectively?

 1600 W and 1250 W
 3200 W and 5200 W
 3200 W and 2500 W
 1600 W and 5000 W

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC Shunt Motor the speed can be increased by

 Increasing the field current.
 Increasing the field current.
 Increasing the armature current.
 Decreasing the field current.

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
↑