• 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
A DC generator without commutator is a

 induction motor
 DC generator
 AC generator
 DC motor

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When Flemings right hand rule to find the direction of induced emf, the thumb points towards

 direction of induced emf.
 direction of flux.
 direction of motion of the conductor.
 opposite to the direction of motion of the conductor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of

 None of above.
 Line current.
 Field current.
 Armature current.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In dc machines, the field-flux axis and armature-mmf axis are respectively along

 quadrature axis and direct axis
 quadrature axis and interpolar axis
 direct axis and indirect axis
 direct axis and interpolar axis

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a 3 - Φ induction motor is clockwise when it is supplied with 3 - Φ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be

 C - A - B.
 B - C - A or C - A - B.
 B - C - A.
  A - C - B.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The speed of a cumulatively compound DC motor can be controlled by varying

 Shunt field resistance control.
 Any of above.
 Armature voltage control.
 Armature resistance control.

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
↑