Which of the following is NOT classified as a typical maintenance category?

The classification of maintenance activities typically includes categories like unplanned, preventive, and planned maintenance. Unplanned maintenance refers to reactive strategies that arise from unexpected equipment failures or breakdowns, while preventive maintenance involves scheduled tasks designed to mitigate the likelihood of equipment failure by maintaining it regularly before issues arise. Planned maintenance denotes activities that have been scheduled ahead of time based on operational needs and equipment condition.

Passive maintenance, on the other hand, is not a recognized category within standard maintenance terminology. It generally implies a lack of action or a non-interventionist approach toward maintenance tasks, which is not aligned with the proactive nature of standard maintenance categories that aim to enhance equipment reliability and longevity. In the context of effective facility management, the absence of a defined strategy like passive maintenance makes it clear that it does not fit within the common frameworks of maintenance classification.