Which of the following maintenance strategies is proactive in nature?

Scheduled maintenance is considered a proactive maintenance strategy because it involves planning and performing maintenance activities at predetermined intervals or based on specific criteria before a failure occurs. This approach aims to prevent unexpected breakdowns and ensure that equipment and facilities function optimally over time. By conducting maintenance activities on a regular basis, such as inspections, part replacements, and servicing, facility managers can address potential issues before they lead to significant problems, helping to extend the lifespan of assets and maintain a reliable operating environment.

In contrast, corrective maintenance occurs after a failure has taken place, responding to problems rather than preventing them. Reactive maintenance is similar in that it involves addressing issues as they arise without prior planning. Random maintenance lacks a systematic approach, often relying solely on chance or spontaneous repair opportunities. These strategies, while necessary in some circumstances, do not provide the preventative benefits that scheduled maintenance offers.