• 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
When flux density is constant in a transformer, hysteresis loss varies as

 f
 f²
 V²
 V

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Thin laminations are used in a machine in order to reduce

 Copper losses
 Eddy current losses
 Both 1 and 2
 Hysteresis losses

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a 3 - Φ induction motor can be reversed by

  transposing all the three leads from the supply.
  transposing any two leads from slip rings.
  disconnecting any one phase.
  transposing any two leads from supply.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which 1 - Φ motor does operate at high power factor?

  Split phase.
  Capacitor run.
  Capacitor start.
  Shaded pole.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage

 200 V.
 300 V.
 150 V.
  223.V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In dc machine armature windings are placed on rotor because of the necessity for

 generation of voltage.
 development of torque.
 electromechanical energy conversion.
 commutation.

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
↑