• 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
In dc motors, under leading pole tips flux density will--------?

None of these
 decrease
 increase
 either increase or decrease

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generators, the cause of rapid brush wear may be

 any of above.
 imperfect contact.
 rough commutator surface.
 severe sparking.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 2 KVA transformer has iron loss of 150 W and full load copper loss of 250 W. The maximum efficiency of the transformer would occur when the total loss is

 400W
 250 W
 300 W
 500 W

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The basic function of a transformer is to change

 the power level
 the frequency
 the level of the voltage
 the power factor

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The slip of an induction motor normally does not depend on which of the following?

  Core loss component.
 Rotor speed.
 Shaft torque.
 Synchronous speed.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Direct axis reactance is defined as the ratio of

 Vmin to Imax
 Vmax to Imax
 Vmax to Imin
 Vmin to Imin

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
↑