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Power Systems

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

 200 Ω
 800 Ω
 160 Ω
 400 Ω

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Power Systems
When reactance grounding is used in network, the voltage between neutral and ground is

 IR0 × Xn
 both 1 and 3
 3×IR0 × Xn
 IN × Xn

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Power Systems
Which of the following statements is/are true? Corona is reduced by

 increasing the distance between the conductor
 increasing the radius of the conductor
 decreasing the supply frequency
All of these

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Power Systems
Nuclear reactors usually employ

 fusion.
  fission.
 both of A and B.
 none of above.

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Power Systems
For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is

 12.2 kV / μs.
  9.01 kV / μs.
 2.0 kV / μs.
 10.01 kV / μs.

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Power Systems
Which material is used in controlling chain reaction in a nuclear reactor

  Boron.
 Heavy water.
 Beryllium.
 Thorium.

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