• 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
A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is

 0 Hz
 100 Hz
 50 Hz
 25 Hz

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called

  resonance.
  harmonics.
  crawling.
  cogging.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Ratio of starting torque to full load torque is minimum in

  Differential compound motor.
  Cumulative compound motor.
  Shunt motor.
  Series motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If dimension of all the parts of a synchorous generator and the number of field and armature turns are double, then generated voltage will change by a factor of

 4.
 1.
 2.
  8.

ANSWER DOWNLOAD EXAMIANS APP

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

 ∞
 a positive finite value
 0
 a finite negative value

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to

 infinity.
 zero.
  unity.
 two.

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
↑