Power Systems
In a pressurized water reactor

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

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Power Systems
The VSWR of transmission line is

 Proportional to load and characteristic impedance.
 Directly proportional to characteristic impedance and inversely to load impedance.
 Directly proportional to voltage minimum and inversely proportional to voltage maximum.
  Directly proportional to load impedance and inversely to characteristic impedance.

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