• 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 speed of rotating magnetic field of 8 pole 50 Hz induction motor is

 1000 rpm
 750 rpm
 1500 rpm
 3000 rpm

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Equalizer rings are used in which of the followings?

 lap winding
None of these
 wave winding
 both 1 and 2

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The shaft torque of a dc motor is less than the electromagnetic torque because of

  mechanical losses.
  ohmic losses.
  eddy current losses.
  hysteresis losses.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor?

 850 rpm
 1000 rpm
 950 rpm
 900 rpm

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A self-excited shunt generator fails to build up, because 1. the field circuit is open 2. The armature circuit is open 3. the residual magnetism is absent 4. The direction of rotation is wrong From these, the correct answer is

 1, 3
 1, 2 and 3
 1, 2, 3 and 4
 3 only

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
What is/are the necessary conditions for parallel operation of alternators?

 Both 1and 2
 Terminal voltage is same
 Speed of alternators should be same
 Frequency should be same

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
↑