• 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
Regenerative braking is not found in which motor?

  DC series.
 DC shunt.
 Induction motor.
 DC compound.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In synchronous generator a synchronous dead load (lamp, furnaces etc) has no ____________ hence it has no natural frequency of oscillation.

 synchronizing power co efficient.
 damping torque.
  restoring torque.
 mechanical rotatory system.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Ward Leonard control is provides speed control

  In one direction only.
  Below rated speed.
  Above rated speed.
  In both direction.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following methods are used to control the speed of DC motors is

 supply voltage control
 armature circuit resistance control
All of these
 field current control

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a three phase star - delta transformer, what is the angle difference between primary and secondary phase voltages?

  Delta side lags by -30°.
 Delta side leads by 30°.
 Star side lags by -30°.
 Star side leads by 30°.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The working principle of transformer depends on

 Faradays law of electromagnetic induction.
 Newtons law.
 Coulombs law.
 Amperes law.

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
↑