In a pressurised water reactor (PWR), the___________________?

Correct answer: C. Coolant water is pressurised to prevent bulk boiling of water in the core

  • A. Fuel is natural uranium and heavy water acts both as moderator & coolant
  • B. Coolant water boils in the core of the reactor
  • C. Coolant water is pressurised to prevent bulk boiling of water in the core
  • D. Use of moderator is not required

Explanation

PWR water is kept under high pressure so its boiling point rises and bulk boiling does not occur inside the reactor core. The heated primary water transfers heat to a separate steam-generating circuit.

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