• 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 current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is

 660
 60
 600
 40

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Alternator operates on the principle of

  self induction.
  self or mutual induction.
  electromagnetic induction.
  mutual induction.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generator, armature reaction refers to what?

 Effect of armature flux on the load.
None of these
  Effect of armature flux on the main field flux.
 Effect of field flux on the armature flux.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which motors are preferred for refrigeration and air conditioning in smaller units?

  Induction motors.
  Universal motors.
  Stepper motors.
  Reluctance motors.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
An electric motor with constant output power will have a torque speed characteristics in the form of a

 Straight line parallel to the speed axis.
 Circle about the origin.
 Straight line through the origin.
 Rectangular hyperbola

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
↑