Certified Maintenance and Reliability Technician (CMRT) Practice Test

Changing the oil in your car every 3000 to 5000 miles is an example of preventative maintenance. This type of maintenance is performed to prevent potential failures and extend the life of the equipment. Regular oil changes help to keep the engine running smoothly and efficiently by ensuring that the engine oil remains clean and effective, reducing wear and tear on the engine components.

Preventative maintenance is scheduled and proactive in nature, as it aims to anticipate when maintenance is required and address it before issues arise. This approach helps in minimizing the risk of unexpected breakdowns and costly repairs, contributing to the overall reliability of the vehicle.

In contrast, corrective maintenance involves fixing problems after they occur, which is reactive rather than proactive. Chunk maintenance is not a commonly used term in maintenance practices and does not apply in this context. Predictive maintenance relies on data and analytics to forecast when maintenance should be performed based on the condition of the equipment, rather than following a fixed schedule. Therefore, changing oil regularly fits firmly within the realm of preventative maintenance.