In the context of nuclear reactor, criticality refers to: |ForumIAS

Q. In the context of nuclear reactor, criticality refers to:

[A] The state in which a nuclear reactor is stable and self-sustaining a nuclear chain reaction.

[B] The point at which a nuclear reactor is fully decommissioned, and all radioactive materials are safely removed.

[C] The point at which a nuclear reactor begins to overheat and requires emergency shutdown procedures.

[D] The phase during which a nuclear reactor is being constructed and tested for safety compliance.

Answer: A

Notes:

Explanation – In the context of a nuclear reactor, “criticality” refers to the condition where the reactor is in a stable state, maintaining a self-sustaining nuclear chain reaction. This means that each fission event produces enough neutrons to continue the chain reaction without increasing or decreasing in intensity. It is an essential operating condition for a nuclear reactor to function safely and effectively.

Source: The Hindu

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