Power Systems
Storage requirement can be determined from

 hydro-graph.
 flow duration curve.
  both B and C.
 mass Curve.

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Power Systems
The draft tube is provided to

None of these
 raise the water surface of the stream to create an artificial head.
  increase the acting head on the water wheel.
 reduce the effect of water hammer.

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Power Systems
In a pressurized water reactor

  both B and C.
 water is used at high pressure so that it is available is liquid from at about 280° C.
 heavy water is used as both coolant and moderator.
 the coolant water boils in the reactor core.

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