Power Systems
For accurate load flow calculations on large power systems, the best method is

 G-S method
All of these
 Decoupled method
 N-R method

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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.
 the coolant water boils in the reactor core.
 heavy water is used as both coolant and moderator.

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