• 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
To eliminate 5th harmonic in the induced voltage phase breadth should be

 30°
 72°
 36°
 18°

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Maximum allowable moisture content of power transformer insulating oil is generally taken as

  35 ppm.
 20 ppm.
 25 ppm.
 45 ppm.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
It is an advisable to use auto transformer if the transformation ratio is

 near to 1.
 Greater than 1.
 0.5.
 0.25.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Series field consists of--------number of turns and ---------- conductors respectively

 less and thick
 large and thick
 large and thin
 less and thin

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC generator the emf generated by the armature is maximum when

 rate of change of flux is minimum.
 shaft rotation is high.
 induced voltage is high.
  rate of change of flux is maximum.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is

 Series shunt.
 Cummulative compound.
  Differentical compound.
 have an equal number of electrons and protons.

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
↑