A nuclear reactor is said to be critical when the neutron population in the reactor core is

A Rapidly increasing leading to the point of explosion
B Decreasing from the specified value
C Reduced to zero
D Constant

Correct Answer: Constant

Criticality means that a reactor is controlling a sustained fission chain reaction, where each fission event releases a sufficient number of neutrons to maintain an ongoing series of reactions. This is the normal state of nuclear power generation.
Bissoy MCQ
#Mechanical Engineering #Power Plant Engineering

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