• 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 speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________.

  2.
 6.
  8.
 4.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generators, the residual magnetism is of the order of

  15 %.
  20 %.
  2.5 %.
 10 %.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following motor has the highest power factor at full load?

 Shaded pole
 Capacitor start
 Resistance split phase
 Capacitor run

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which type of bearing is provided in small induction motors to support the rotor shaft?

  Cast iron bearings.
  Ball bearings.
None of these
  Bush bearings.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Rotor resistance speed control is used in

 synchronous motor.
 slip ring induction motor.
 squirrel cage induction motor.
 dc shunt motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Thin laminations are used in a machine in order to reduce

 Eddy current losses
 Copper losses
 Hysteresis losses
 Both 1 and 2

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
↑