Nuclear Power Engineering
Which of the following is a moderating material used in nuclear reactor?

Stainless steel
Cadmium
Zircalloy (an alloy of zirconium and aluminium)
Graphite

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Nuclear Power Engineering
Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

Melting point, hence can be subjected to higher temperature
Density ; hence core volume for a given power output would be smaller
Resistance to effects of irradiation
All of these

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