• 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
At the instant of starting, the per unit slip of 3 - Φ induction motor is

  0.1.
  0.5.
  0.05.
  1.0.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Stepper motor is used in

 computer printers
 food processing
 traction
All of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following motors is/are widely used?

 either of these
 squirrel cage induction motor
None of these
 slip ring induction motor

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series

 76.91 V.
  66.91 V.
 86.91 V.
 56.91 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Find the synchronous reactance of alternators in which a given field current of 200 A on short circuit and a generated emf of 50 V on open circuit. Armature resistance is 0.1 ohm

 0.5Ω.
  0.23Ω.
 0.25Ω.
 1Ω.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
3rd harmonics are eliminated in induction motor by using

  zig - zag connection.
  star connection.
  V connection.
  delta connection.

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
↑