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Question
In the reactor of a nuclear power plant, name the material which is used:
(a) as a moderator
(b) to absorb radiations
(c) in the fuel rods
(d) in the control rods
(e) to carry away heat
Solution
(a) Graphite is used as a moderator.
(b) The reactor is enclosed in a concrete chamber to absorb the nuclear radiation.
(c) Uranium-235 is used in the fuel rods.
(d) Boron rods are used as the control rods.
(e) Liquid sodium is used to carry away the heat.
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