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Power Systems

Power Systems
Plant capacity factor value is

 0
 1
 greater than 1
 less than 1

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Power Systems
A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is

 0 Ω
 800 Ω
 400 Ω
 200 Ω

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Power Systems
Proximity effect is more in case of

 over head lines
None of these
 power cables
 same in both cases

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Power Systems
The insulation of modern EHV is designed based on

  switching voltage.
 corona.
 RI.
 lightning voltage.

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Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with high percentage of reaction and runner adjust vanes is

  Pelton.
  Francis.
  Impeller.
  Kaplan.

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Power Systems
Gas turbine power plants for maximum efficient may have

 Heat exchangers.
  All of above.
 Reheating.
 Multistage compression.

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