• 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 trailing pole tips, flux density will_______ ?

 decrease
None of these
 either increase or decrease
 increase

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In star-delta starting of squirrel cage induction motor compared to DOL starting the starting current and torque are

 1/√3, 1/√3
 1/√3, 1/3
 1/3, 1/√3
 1/3, 1/3

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be

 somewhat more than 230 V
 230 V
 somewhat less than 230 V
 6 V

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following load normally needs starting torque more than rated torque?

 Blowers.
 Air compressors.
  Conveyers.
 Centrifugal pumps.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Field winding of a DC series motor is usually provided with thick wire

 to provide large flux.
 as it carries large load current.
 to reduce the insulation of materials.
 in order to reduce eddy current to provide large flux.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Satisfactory commutation of DC machine requires

 brushes should smoothly run in the holders.
All of these
 brushes should be of proper grade and size.
 smooth, concentric commutator properly undercut.

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
↑