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

  35 ppm.
 25 ppm.
 45 ppm.
 20 ppm.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Rotor resistance speed control is used in

 synchronous motor.
 slip ring induction motor.
 dc shunt motor.
 squirrel cage induction motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In synchronous generator a synchronous dead load (lamp, furnaces etc) has no ____________ hence it has no natural frequency of oscillation.

 damping torque.
 mechanical rotatory system.
  restoring torque.
 synchronizing power co efficient.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Winding conductors of an electrical power transformer are mainly insulated by

 cotton insulation.
 rubber insulation.
 wooden insulation.
  paper insulation.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Ideal value of voltage regulation of a device is?

 a finite negative value
 a positive finite value
 ∞
 0

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the handle of a three point starter goes to back to OFF position, it may be due to

 all of these.
 high filed circuit resistance.
 zero or very low voltage supply.
 over load.

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
↑