Which maintenance approach is commonly referred to as condition-based maintenance?

Which maintenance approach is commonly referred to as condition-based maintenance?

• A. Preventive maintenance
• B. Scheduled maintenance
• C. Unscheduled maintenance
• D. Predictive maintenance

Answer: (D)

Condition-based maintenance focuses on the asset's actual condition, using measurements and sensors to decide when service is needed. It relies on indicators like vibration, temperature, wear, oil analysis, or other condition data to trigger maintenance before a failure occurs. Because decisions are driven by real-time or trending data about the equipment’s state, this approach is often described as predictive or data-driven maintenance—servicing is planned based on the observed condition rather than on a fixed schedule. In contrast, preventive or scheduled maintenance uses fixed time or usage intervals, and unscheduled maintenance happens after a failure. So the best answer is the one that ties maintenance actions to what the equipment is actually doing right now.

Condition-based maintenance focuses on the asset's actual condition, using measurements and sensors to decide when service is needed. It relies on indicators like vibration, temperature, wear, oil analysis, or other condition data to trigger maintenance before a failure occurs. Because decisions are driven by real-time or trending data about the equipment’s state, this approach is often described as predictive or data-driven maintenance—servicing is planned based on the observed condition rather than on a fixed schedule. In contrast, preventive or scheduled maintenance uses fixed time or usage intervals, and unscheduled maintenance happens after a failure. So the best answer is the one that ties maintenance actions to what the equipment is actually doing right now.