• 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
A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is

 1/√3
 3
 √3
 1/3

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is

 230 V.
 200 V.
 115 V.
 460 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Induction motors normally use cast aluminium rotor because aluminium is

  of low resistivity.
  lighter in weight.
  cheaper in cost.
  easy to cast owing to its low melting point and is easily available.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Stray losses in transformer occurs in

 paper insulation in transformers.
 transformer insulating oil.
  winding conductors and steel structures of transformer.
 steel core.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The direction of rotation of a DC compound motor can be reversed by interchanging

 armature connections.
 armature or field connections.
 shunt field connections.
 series field connections.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In above questions, find the power delivered by each of the alternators to a load of impedance 6Ω(resistive)

 100 W, 2000 W.
 1000 W, 5040 W.
  3190 W, 5040 W.
 6000 W, 7000 W.

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
↑