• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Power Systems

Power Systems
For complete protection of 3-phase system from the short circuit faults minimum number of relays required are

 six
 two
 three
 one

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Recovery voltage in CB is equal to

  arcing period voltage.
  none of these.
  transient voltage.
  normal frequency 50 Hz rms voltage.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Transmission lines are transposed to reduce

 interference with neighbouring communication lines
 ferranti effect
 skin effect
 proximity effect

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be

 5 + j 7 A
 -2 - j 1 A
 1 + j 4 A
 1 + j 2 A

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Which of the following methods is/are used for reactive or voltage compensation

 generation excitation control
All of these
 shunt capacitor
 series capacitor

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.75
 0.4
 0.25
 0.5

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Power Systems

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
↑