Question

In nuclear reactor, Cadmium rods are used as

• A. Fuel
• B. Moderator
• C. Control Rods
• D. None

Answer 1

The correct option is C Control Rods

Cadmium, Boron and Steel rods are used as control rods in a nuclear reactor.
Commonly moderators are Heavy water, graphite and Beryllium and Berillium oride.
Common fuels are Uranium ${(}^{238}U)$, enriched Uranium ${(}^{235}U)$ and plutonium ${(}^{236}Pu)$ and ${}^{232}Th$