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Power Systems

Power Systems
In nuclear power plants which material is/are used as coolant?

All of these
 graphite
 beryllium
 liquid sodium

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Power Systems
Which of the following buses is/are not PV buses?

 reactive power support buses
 fixed shunt capacitor buses
 both 1 and 2
 voltage control buses

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Power Systems
Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF?

 800 Ω
 400 Ω
 200 Ω
 160 Ω

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Power Systems
Find the characteristic impedance of a transmission line, if impedance is 16 Ω and admittance is 0.1 mâ„§?

 320 Ω
 400 Ω
 160 Ω
 200 Ω

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Power Systems
The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is

 20.
 10.
  5.
 55.1.

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Power Systems
Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load?

 0.098 pu
 0.98 pu
 1 pu
 1.098 pu

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