• 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
Hopkinson test is conducted under which of the following condition?

 no load
 half load
 any of the above
 full load

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following induction motor has maximum speed?

  2 pole.
 4 pole.
 8 pole.
 6 pole.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The magnetic field which initially induces emf in the armature in a self excited DC generator is because of

None of these
 armature reaction.
  permanent magnets.
  residual magnetism.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 500 V, 120 KW, 50 Hz, star connected synchronous motor operating at 0.8 power factor leading has full load efficiency of 91%. The armature resistance is equal to 0.08Ω. The magnitude of armature current is nearly equal to

 127 A.
 173 A.
 240 A.
  190 A.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called

  harmonics.
  cogging.
  crawling.
  resonance.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Drop in speed from no load to full load is very high in

 Cummulative compound motor with interpoles.
  Series motor without interpoles.
 Shunt motor with interpoles.
 Series motor with interpoles.

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
↑