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Which consequence results when rapid coolant vaporization occurs in a nuclear reactor?

A)Reduced neutron moderation efficiency
B)Increased core-material ductility
C)Improved steam turbine generation
D)Enhanced heat exchanger performance

💡 Explanation

Rapid coolant vaporization introduces significant voids, diminishing neutron moderation due to a decrease in neutron absorbing collisions; voids introduce positive feedback. Therefore, neutron moderation decreases, rather than increase core heat transfer, because of bubbles.

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