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Power Systems

Power Systems
Cheapest plant in operation and maintenance is

  steam power.
  nuclear.
  hydroelectric.
  diesel power.

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Power Systems
In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is

 55.56 MVAr.
 61.73 MVAr.
  40.5 MVAr.
 45 MVAr.

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Power Systems
In thermal power plants the size of coal after crushing

  300 mm.
 40 mm.
 200 - 205 mm.
  20 - 25 mm.

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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.
 10.01 kV / μs.
 2.0 kV / μs.

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Power Systems
A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 %

 5 × 106 kWh.
 4.06 × 106 kWh.
  2.044 × 106 kWh.
 3 × 106 kWh.

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Power Systems
Which one of following fuels is used by slow thermal nuclear reaction for power generation

 Th232.
  U235.
 U238.
 Pu239.

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