Which outcome occurs when a pressurized water reactor’s moderator density decreases greatly?

A)Increase in neutron mean free path✓

B)Increased rate of nuclear fission

C)Higher core heat transfer rate

D)Control rod ejection acceleration

💡 Explanation

A decrease in moderator density reduces neutron moderation, causing their average speed to increase via moderation; therefore, the neutron mean free path increases because neutrons interacts less with the moderator, rather than increasing reactor power.

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Which outcome occurs when a pressurized water reactor’s moderator density decreases greatly?

💡 Explanation

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