Which statement about corrective maintenance is true?

Which statement about corrective maintenance is true?

• A. It is planned and scheduled to prevent failure.
• B. It is performed before a failure to reduce risk.
• C. It is performed after a failure to restore function.
• D. It is never performed on critical components.

Answer: (C)

Corrective maintenance is the work performed after a failure to restore equipment to its intended function. It’s a reactive approach that happens after something has already gone wrong, with the goal of returning the system to operation as soon as possible. The statement about planning and scheduling to prevent failure describes preventive maintenance, not corrective. The idea of performing work before a failure to reduce risk also fits preventive or proactive maintenance, not corrective. And it isn’t true that you never fix critical components after they fail—when a critical part fails, corrective maintenance is carried out to restore safety and functionality. In short, corrective maintenance responds to faults after they occur.

Corrective maintenance is the work performed after a failure to restore equipment to its intended function. It’s a reactive approach that happens after something has already gone wrong, with the goal of returning the system to operation as soon as possible. The statement about planning and scheduling to prevent failure describes preventive maintenance, not corrective. The idea of performing work before a failure to reduce risk also fits preventive or proactive maintenance, not corrective. And it isn’t true that you never fix critical components after they fail—when a critical part fails, corrective maintenance is carried out to restore safety and functionality. In short, corrective maintenance responds to faults after they occur.