Question: D . A reactor core using uranium rods are covered with a heavy water moderator. An engineer is proposing to replaced it by light water.

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A reactor core using uranium rods are covered with a heavy water moderator. An engineer is proposing to replaced it by light water. By assuming that it is homogeneous in nature:

(

)

Would the thermal utilization increase or decrease? Why?

(

)

What would you expect the net effect on k to be

?

Why?

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