• 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
Which of the following represents the pitch factor?

 Cos (α/2)
 Cos α²
 Cos α
 sin (α/2)

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The emf induced in the dc generator armature winding is

 AC
 AC and DC
None of these
 DC

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 + Iw.
 I1 = KI2.
 I1 = KI2 + Iμ.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Open circuit test on transformer gives

 eddy current loss
 hysteresis loss
 copper loss
 both 1and 2

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as

 1.0.
 3 to 5.
 2 to 3.
  1.5 to 2.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Generators work on the principle of production of

None of these
 dynamically and statically induced emf.
 statically induced emf.
 dynamically induced emf.

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
↑