• 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 slip of an induction motor during DC rheostatic braking is

 1 - s.
  2 - s.
 2 + s.
  s.

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to

 30°.
 45°.
 0°.
  75°.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A flat compound generator is obtained from compound generator by connecting a variable resistor

 in series with the shunt field
 in series with the series field
 in parallel with the shunt field
 in parallel with the series field

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A smaller air gap in a induction motor helps to

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For small value armature current Ia the torque developed by a DC series motor is proportional to

  1/Ia.
  Ia2.
  √Ia.
  Ia.

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
↑