• 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.
 44 A.
 440 A.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is

 100 Hz
 50 Hz
 25 Hz
 0 Hz

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When pure inductive load is connected to the alternator, what is the effect of armature reaction?

 Cross magnetization
 Demagnetization
 Magnetization
None of these

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Why are capacitors used with large AC induction motor?

  Improve power level.
  Improve current level.
  Improve power factor.
  Improve voltage level.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a transformer, hysteresis and eddy current losses depend upon

 load current
 supply frequency
 both 2 and 3
 maximum flux density

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.
 2 to 3.
 3 to 5.
  1.5 to 2.

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
↑