• 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
A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base?

 1 pu
 0.25 pu
 0.2 pu
 5 pu

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of

 low alternative efficiency.
 low steam turbine mechanical efficiency.
  high energy loss from turbine exhaust to condenser.
 high energy loss in boiler.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging.

  14 %.
  None of above
  56 %.
  28 %.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In a steam power plant, the feed water coming to the economizer is heated plant the feed water coming to the economizer is heated using

  flue gas.
 direct heat in the furnace.
 LP steam.
 HP steam.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Find the number of strands of ACSR conductor for 3 layer transmission line?

 1
 19
 29
 7

ANSWER DOWNLOAD EXAMIANS APP

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

 three
 two
 six
 one

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
↑