Which among the following is used as a moderator in nuclear reactor?
A. Thorium
B. Radium
C. Ordinary water
D. Graphite
Answer
Correct Answer: D. Graphite
Detailed About MCQs
In the given option’s graphite is used as a moderator in a nuclear reactor. Graphite is used in the graphite reactor. A graphite reactor is a nuclear reactor that uses carbon as a neutron moderator, which allows un-enriched uranium to be used as nuclear fuel. Graphite is found in metamorphic and igneous rocks.