LOCA stands for Loss Of Coolant Accident.

• A. Localized Contamination Accident
• B. Large Operational Contingency Accident
• C. Loss Of Coolant Accident
• D. Loss Of Core Activity

Answer: (C)

LOCA stands for Loss Of Coolant Accident. This is the standard term used in nuclear safety to describe a scenario in which reactor coolant is lost due to a leak or rupture, risking inadequate cooling of the fuel. The correct choice matches this established acronym and concept, which is why it best fits questions about LOCA. This event is critical because it activates emergency core cooling and other safety systems to keep the fuel temperature within safe limits and prevent overheating. The other phrases describe concepts not associated with the LOCA acronym and would not be used in this context.