• 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
Which of the following represents the pitch factor?

 Cos α
 Cos α²
 Cos (α/2)
 sin (α/2)

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A large series motor is never started without some mechanical load on it because otherwise it will

 produce sparking at brushes.
 draw too much current.
 develop excessive speed and damage itself.
 open fuse or circuit breaker.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In synchronous motor the torque is proportional to

 Power P
 1/P²
 1/P
 P²

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Sparkless commutation can be achieved by employing

  any one or more of the above methods.
  inter poles.
  high resistance carbon brushes.
 compensating winding.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a DC motor can be determined by

  Fleming's left hand rule.
 Lenz's law.
 Ampere's law.
 Fleming's right hand rule.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The induction motor shaft is made of

  aluminium.
  cast iron.
  stainless steel.
  mild steel.

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
↑