• 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
Larger values of air flux density is taken while designing IM for

  none.
  both.
  larger bore diameter.
  larger output.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a three phase slip-ring induction motor, brushes are connected to

  3 - Φ AC supply.
  external star-connected resistors.
  DC supply.
  equalizing coils.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Tertiary winding in a transformer is mostly

  delta connected.
 zig - zag star connected.
 zig - zag delta connected.
 star connected.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For small value armature current Ia the torque developed by a DC series motor is proportional to

  1/Ia.
  Ia.
  √Ia.
  Ia2.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
What is the necessity of copper brushes in a dc motors?

  To convert alternating supply current to direct current.
  To increase the flux cutting by the rotor.
  To absorb the mechanical shocks produced during running condition.
  None of these.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In case of IM the torque is

  inversely proportional to slip.
  inversely proportional to √slip.
  directly proportional to slip2.
  directly proportional to slip.

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
↑