• 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
The torque speed characteristics of a AC servomotor is approximately

 hyperbola
 linearised
 any of the above
 parabola

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Swinburne's test is applicable to

 DC Shunt motor.
 DC series motor.
 DC shunt and level Compound motor.
 DC compound motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A transformer has resistance and reactance in per unit as 0.01 and 0.04 respectively. Its voltage regulation for 0.8 power factor lagging and leading will be

 6% and -4%
 4.8% and -3.2%
 3.2% and -1.6%
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For the same power output rating and full load speed, the motor will have poorest starting torque, is

  Shunt.
 Series.
 Differential compound.
 Cummulative compound.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a DC generator if field winding attains the critical resistance

 the voltage generated will be zero.
 field winding will burn.
 machine will generate maximum voltage.
 machine will generate maximum power.

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

  crawling.
  harmonics.
  cogging.
  resonance.

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
↑