Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Physics in Everyday LifeMethods of Electric Energy Production
What is the primary use of heavy water in an atomic reactor?
- A.Coolant
- B.ModeratorCorrect answer
- C.Fuel
- D.Shielding material
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Practice these MCQs in the appQuick fact: Heavy water (D₂O) is primarily used as a moderator in atomic reactors to slow down fast neutrons so they can sustain the nuclear fission chain reaction.