• 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 which transformer, the tertiary winding is used?

 Star - delta
 Star - star
 Delta - star
 Delta - delta

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The breakdown torque of a synchronous motor varies as

 1/V
 1/V²
 applied voltage V
 V²

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Armature reaction effect is more in which of the following methods?

 field weakening method
None of these
 armature resistance control
 same in both methods

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a DC machine having P no of pole pairs Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for lap-winding ?

 PZL/4SP²
 PZL/4Sa²
 PZL/ 4Sa
 PZL/4S

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In an alternator the voltage generated per phase is proportional to

  flux per pole.
All of these
  number of turns in coil.
  frequency of waveform.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC generator, if P be the number of poles and N be the rpm of the rotor, then frequency of magnetic reversals will be

 PN/120.
 PN/60.
 PN/3000.
 PN/2.

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
↑