• 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
In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called

  slip.
  cogging.
  crawling.
  skewing.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V.

  222 V.
 220 V.
 230 V.
 225 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Wave winding is prefered for which of the following rating?

 low current and low voltage
 low current and high voltage
 high current and low voltage
 high current and high voltage

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following are variable losses?

 shunt field copper loss
 armature copper loss
 hysteresis loss
 eddy current loss

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In field flux method speed control of DC Motor is

 constant torque drive above the base speed.
 constant power drive above base speed.
 constant torque drive below the base speed.
 constant hp drive below the base speed.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
φA DC shunt machine generates 250 V on open circuit at 1000 RPM. Armature resistance is 0.5 Ω, field resistance 250 Ω. When running as a motor takes 4 A at 250 V. Calculate the speed when running as a motor taking 40 A at 250 V. Armature reaction weakens the field by 4%.

 920 RPM
 970 RPM
 940 RPM
 960 RPM

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
↑