• 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
Breaking current is a ------------------ value?

 average
 any of the above
 RMS
 maximum

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 %

 5 × 106 kWh.
 3 × 106 kWh.
  2.044 × 106 kWh.
 4.06 × 106 kWh.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

 2.4 pu
 0.2 pu
 3.975 pu
 1.375 pu

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is

 45 MVAr.
  40.5 MVAr.
 55.56 MVAr.
 61.73 MVAr.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes

  79.33 %.
 80.25 %.
  74.56 %.
 78.96 %.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The load current in short circuit calculations are neglected because

 nether 1 nor 2
 short circuit currents are greatly out of phase with load currents
 both 1 and 2
 short circuit currents are much larger than load currents

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
↑