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Power Systems

Power Systems
Length of the cable is doubled, its capacitance C will be

 unchanged.
 doubled.
 one-half.
 one-fourth.

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

 200 Ω
 800 Ω
 400 Ω
 160 Ω

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Power Systems
The function of moderator in a nuclear reactor is

All of these
 to increase the energy of the neutrons.
  to slow down the neutrons.
 to absorb the excess.

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Power Systems
Mercury is choice with steam in binary vapor cycle because

  all of above.
 higher saturation temperature than other fluids.
 higher critical temperature and pressure.
 relative low vaporization pressure.

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Power Systems
Most commonly used material for insulator is

All of these
 glass
 mica
 porcelain

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Power Systems
A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line

 medium transmission line
 long transmission line
 short transmission line
 any of the above

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