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Power Systems

Power Systems
Based on the discharge, Kaplan turbine will discharge

 >10000 lpm
 1000 lpm

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Power Systems
Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is

 400 MVA
 500 MVA
 100 MVA
 125 MVA

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Power Systems
Surge impedance loading (SIL) is represented by

 Vl²/Zs
 Vl²*√(C/L)
 both 1 and 2
 Vph²/Zs

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Power Systems
A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system?

  14.76 A.
 1.476 A.
 14.7 mA.
 1 A.

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Power Systems
The 1st nuclear plant in world was commissioned in

  U.S.S.R.
  U.S.A.
 U.K.
  UAE.

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Power Systems
Advantages of pumped storage plants is/are

 used as load frequency control
 operating time is minimum
 most economical as a peak load supply plant
All of these

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