• 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
 parabola
 linearised
 any of the above

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
which of the following losses are negligible in blocked rotor test?

 mechanical loss
 copper loss
 iron loss
 both A and B

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC Shunt Motor having shunt field resistance of 250 Ω and armature resistance of 0.5 Ω is connected to 250 V supply and load current of 21 A. What is the back emf generated ?

 210 V
 240 V.
 230 V.
 150 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC machines internal characteristics are plotted between

 Eg vs Ia
 Vt vs load current
 Vt vs Ia
 Eg vs load current

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC series motor has which of the following characteristics?

 Has a almost constant speed.
 Can be started easily without load.
 Has a poor torque.
 Has its field winding consinting of thick wire and less no of turns.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Stepper motor is used in

 computer printers
All of these
 food processing
 traction

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
↑