• 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
Number of slip rings in 3-phase synchronous motor will be

 3 or 4
 0
 1
 2

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used.

 none of above.
 Ward Leonard control.
 rheostatic control.
 any of above method.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following methods of speed control is not affected through stator side?

  Change of number of pole.
  Change of supply voltage.
  Change of supply frequency.
  Change of rotor resistance.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The output voltage of a DC generator is

 E = V – IaRa.
 E = V + Ia.
  E = V + IaRa.
 E = V + Ra.

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a 3 - Φ IM in order to eliminate cogging the number of stator slots must be

  either (B) or (C).
  unequal to number of rotor slots and skewed in shape.
  equal to number of rotor slots.
  an integral multiple of number of rotor slots.

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
↑