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CMA Intermediate · Operations Management and Strategic Management · Economics of Maintenance and Spares Management

Which of the following is a genuine feature of corrective maintenance as distinct from breakdown maintenance?

Corrective maintenance restores equipment once a fault has been detected, which can be before total failure. It is not calendar-based, which is preventive, and not driven by failure statistics to replace items early. Nor is it limited to annual shutdowns; its trigger is a detected fault.

  1. AIt restores equipment after a fault is detected, which may be before complete failureCorrect
  2. BIt is carried out only on a fixed calendar
  3. CIt uses statistical failure data to replace items before wear-out
  4. DIt is performed only during annual plant shutdowns

Explanation

Corrective maintenance is action taken to restore equipment to working condition after a fault is found, even if the equipment is still partly running. Fixed calendar work is preventive, and failure-data-based replacement is preventive or predictive. Shutdown work is a scheduling matter, not the defining feature.

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