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

Which of the following best describes breakdown maintenance?

Breakdown maintenance means repairing equipment only after it has failed or stopped. No action is taken beforehand. Fixed-interval replacement is preventive maintenance, and sensor-based forecasting of failure is predictive maintenance, so those options describe different policies.

  1. ARepairing equipment only after it has failed or stopped workingCorrect
  2. BReplacing parts at fixed calendar intervals regardless of condition
  3. CInspecting equipment using sensors to predict failure
  4. DRedesigning equipment to eliminate the need for repair

Explanation

Breakdown (corrective) maintenance means action is taken only after a failure occurs. Replacement at fixed intervals is preventive maintenance, and sensor-based prediction is condition-based (predictive) maintenance. Redesign to remove maintenance is maintenance prevention.

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