Power Systems
When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding?

  Resistance.
  Solid.
  Reactance.
  Peterson coil.

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Power Systems
In a pressurized water reactor

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

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