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Power Systems

Power Systems
Which of the following quantities are to be calculated for generator bus?

 P and Q
 Q and δ
 P and V
 δ and V

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Power Systems
The rating of CB is in terms of

  VAR.
  voltage.
  volt - ampere.
  current.

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

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

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Power Systems
The overall efficiency of a steam power plant equal to

  product of boiler efficiency, turbine efficiency and generator efficiency.
 the Rankine cycle.
 regenerative cycle.
 binary vapor cycle.

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Power Systems
For transmission line which one of the following relation is true?

 AD + BC = 0
 AD - BC = 1
 AD - BC = 0
 AD - BC = -1

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

 400 Ω
 800 Ω
 160 Ω
 200 Ω

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