• 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 maximum power developed in cylindrical synchronous machine is occurs at a load angle of

 90o.
 Greater than 90o.
 0o.
 less than 90o.

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf?

 10 Hz.
  3 Hz.
 50 Hz.
  2 Hz.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3- phase synchronous motor can operate over a wide range of power factors i.e. from lagging to leading power factor. This is achieved by

 varying the applied voltage.
 varying the speed.
 changing the load.
 changing the field excitation.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms.

  0.573.
 0.649.
 0.443.
 0.512.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generator, lap winding is used in

 where constant speed is required.
 where greater load is connected.
 high voltage and low current applications.
  high current and low voltage applications.

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
↑