• 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.
 20 ppm.
 45 ppm.
 25 ppm.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Dynamic braking is very effective for

 series motors.
 separately excited motors.
 differential compound motors.
 shunt motors.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator?

 Induced emf.
 Armature current.
 Can not be determined.
 Mechanical power.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the field current is reduced to zero the maximum power developed by alternator is

 5.46 KW.
  2.73 KW.
 1.644 KW.
 0.9103 KW.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following machines have highest power factor with respect to magnetizing current?

 Any of the above.
 Closed slot type machines.
 Open slot type machines.
 Semi closed slot type machine.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the field winding connection of DC shunt motor is changed

 motor will not run.
 motor will become slow.
 It will run in same direction.
  It will run in opposite direction.

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
↑