• 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
For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio

 33.3%
 50%
 66.3%
 57.7%

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Scott connections are used for

 single phase to three phase transformation.
 three phase to single phase transformation.
 three phase to two phase transformation.
 any of the above.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which motor used in Lathe machine?

None of these
  D.C. cumulative compound motor.
  D.C . series motor.
  D.C. shunt motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a DC Shunt Motor having armature resistance of 0.5 Ω and 2 A armature current at no-load, when the armature current is changed to 20 A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load?

 none of above.
 1037.5 r.p.m.
 4575.4 r.p.m.
 1130 r.p.m.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the speed of a dc motor increases with load torque, then it is a

 permanent magnet motor
 differentially compounded motor
 series motor
 comulatively compounded motor

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
An IM cannot run at synchronous speed because

  induction motor will become synchronous motor.
  air friction will prevent it.
  rotor torque will not be produced.
  none of above.

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
↑