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Power Systems

Power Systems
How much KWh energy is produced by fission of 1 gm of uranium U235

 2400 kWh.
  24 kWh.
  24000 kWh.
 240 kWh.

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Power Systems
A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor?

 5d
 2d
 d
 3d

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Power Systems
A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant?

 6000 kW
 3750 kW
 7500 kW
 3000 kW

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

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

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Power Systems
A transmission line has (2 + j4)Ω impedance, 100 MVA and base voltage is 10 KV. Find the per unit impedance value of transmission line?

 (4 + j8 ) pu
 (2 + j4 ) pu
 (1 + j2 ) pu
 (0.5 + j1 ) pu

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Power Systems
When series reactor is used in generating stations, the fault current magnitude is

 remains unaffected
 any of the above
 increased
 reduced

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