Which of the following is NOT a major classification of maintenance?

The correct option, which indicates a response that is not classified as a major type of maintenance, is identified as adaptive maintenance. Maintenance is generally classified into three major categories: preventative maintenance, corrective maintenance, and overall planning.

Preventative maintenance refers to routine maintenance tasks performed to prevent equipment failures before they occur, ensuring reliability and extending the lifespan of machinery. Corrective maintenance involves repairs made after a failure has occurred, aimed at restoring equipment to its optimal operating condition. Overall planning encompasses strategies and scheduling to ensure maintenance activities are effectively organized and managed.

Adaptive maintenance, in contrast, is not recognized as a major type of maintenance in a standard context. While it can refer to modifications made to adapt systems to new conditions or requirements, it does not align with the traditional categories outlined in most maintenance management frameworks. Thus, recognizing adaptive maintenance as a distinct classification can lead to confusion within the generally accepted categories.