The moderator in a fission reactor
A) Slows down neutrons to make them more effective.
B) Absorbs neutrons to help control the chain reaction.
C) Scatters neutrons evenly throughout the fuel.
D) Keeps the chain reaction progressing slowly.
E) Has some other purpose (specify).

Question

Quizplus · Accepted Answer

The moderator in a fission reactor slows down neutrons to make them more effective in sustaining the chain reaction by increasing the probability of these neutrons to cause further fission when they collide with fissile material.

The Moderator in a Fission Reactor