Which of the following is used a nuclear reactor to slow down fast moving neutrons?

  • A Carbondioxide gas
  • B Liquid sodium metal
  • C Concrete shield
  • D Graphite rods
  • E Boron rods
waec 1993physics

The correct answer is D. Graphite rods

The uses of graphite:

Used in making a pencil.

Used as a dry lubricant.

For making electrodes.

For polishing iron articles.

As a moderator in the nuclear furnace.

The moderator of a nuclear reactor is a substance that slows neutrons down.

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