• 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 generators, the residual magnetism is of the order of

 10 %.
  15 %.
  2.5 %.
  20 %.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by

  sf / 2.
  sf.
  s2.
  f / s.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a synchronous motor torque or load angle δ ------------- with increase in load

 increases
 remains unaffected
 decreases
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The armature core of the rotor bars of dc motors are laminated

  to reduce mechanical losses.
  to reduce hysteresis loss.
  to reduce eddy current loss.
  to provide better flux linkage.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The stator core of a 3 - Φ induction motor is laminated in order to reduce the

  hysteresis loss.
  both of the above.
  weight of the stator.
  eddy current loss.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Induction motor operation depends on

None of these
 stationary magnetic field.
 rotating magnetic field.
 either of these.

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
↑