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Which consequence emerges when the control rods fail?

A)Uncontrolled chain nuclear reaction starts
B)Moderator degrades, halting the reaction
C)Fuel pellets experience mechanical expansion
D)Coolant exhibits reduced heat transfer

💡 Explanation

Uncontrolled chain reaction begins due to neutron moderation dysregulation, known as neutron multiplication, because the rods fail to absorb neutrons, therefore fission rates escalate, rather than a controlled process or degradation. Heat output skyrockets

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