Which statement best describes preventive maintenance PM?

Which statement best describes preventive maintenance PM?

• A. PM is performed on a time- or usage-based schedule.
• B. PM relies on condition data to guide maintenance.
• C. PM is the same as PdM.
• D. PM is performed only after a failure.

Answer: (A)

Preventive maintenance is a proactive approach where maintenance tasks are scheduled ahead of time based on a clock or on how much the equipment has been used. By planning service at fixed intervals or after a certain amount of operation, you address wear and degradation before a failure happens, which helps reduce unexpected downtime and extend equipment life. This is different from relying on current condition data to decide when to service (that would be condition-based or predictive maintenance) and from repairing only after something breaks (reactive maintenance). Examples include scheduled oil changes, filter replacements, and inspections performed at regular intervals or after a set number of hours or cycles.

Preventive maintenance is a proactive approach where maintenance tasks are scheduled ahead of time based on a clock or on how much the equipment has been used. By planning service at fixed intervals or after a certain amount of operation, you address wear and degradation before a failure happens, which helps reduce unexpected downtime and extend equipment life. This is different from relying on current condition data to decide when to service (that would be condition-based or predictive maintenance) and from repairing only after something breaks (reactive maintenance). Examples include scheduled oil changes, filter replacements, and inspections performed at regular intervals or after a set number of hours or cycles.