• 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
In salient pole synchronous machine, the reluctance power varies as

 cosδ
 sin2δ
 sinδ
 cos2δ

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Universal motor have which of the following application?

  Food mixer.
  Domestic pump.
  Traction.
  Lift.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If a transformer has turns ratio K, the primary and secondary current are I1 and I2 respectively and magnetizing current and core loss component of no load current Iμ and Iw respectively, then

  I1 = KI2 + Iw + Iμ.ok
 I1 = KI2.
 I1 = KI2 + Iμ.
 I1 = KI2 + Iw.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
To eliminate 5th harmonic in the induced voltage phase breadth should be

 18°
 72°
 36°
 30°

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In DC generators, electric current to the external circuit from armature is given through

 commutator.
 none of above.
 slip rings.
 solid connection.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 220 ,V 15 , kW 100 rpm shunt motor with armature resistance of 0.25 , W has a rated line current of 68 A and a rated field current of 2.2 A. The change in field flux required to obtain a speed of 1600 rpm while drawing a line current of 52.8 A and a field current of 1.8 A is

 36.36% increase
 18.18% increase
 36.36% decrease
 36.36% increase

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
↑