• 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
The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is

 400 A.
 40 A.
 440 A.
 44 A.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to

 two.
  unity.
 zero.
 infinity.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 100 KVA transformer is operating at 60 Hz, 240 V supply. The same transformer is operating at 50 Hz, 200 V supply. The new rating is

 123.3 KVA
 100 KVA
 83.33 KVA
 50 KVA

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a three phase slip-ring induction motor, brushes are connected to

  equalizing coils.
  external star-connected resistors.
  DC supply.
  3 - Φ AC supply.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In alternator, the rotary part is

 armature.
 none of these.
 core.
  magnetic field poles.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The flux involved in the emf equation of a transformer has

 rms value.
  maximum value.
 total value.
 average value.

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
↑