Which statement best describes a benefit of preventive maintenance?

Which statement best describes a benefit of preventive maintenance?

• A. It increases downtime
• B. It reduces unplanned outages
• C. It eliminates the need for spare parts
• D. It ensures perpetual motion

Answer: (B)

Preventive maintenance focuses on planned inspections, lubrication, adjustments, and part replacements to keep equipment operating and catch wear before it causes a failure. The strongest benefit is reducing unplanned outages, because issues are identified and fixed before they lead to unexpected downtime, improving reliability and overall availability. It’s not about increasing downtime; some planned downtime during maintenance is acceptable and is outweighed by fewer unexpected outages. Spare parts are still needed to replace worn components, and perpetual motion isn’t achievable, so those options don’t describe real benefits.

Preventive maintenance focuses on planned inspections, lubrication, adjustments, and part replacements to keep equipment operating and catch wear before it causes a failure. The strongest benefit is reducing unplanned outages, because issues are identified and fixed before they lead to unexpected downtime, improving reliability and overall availability. It’s not about increasing downtime; some planned downtime during maintenance is acceptable and is outweighed by fewer unexpected outages. Spare parts are still needed to replace worn components, and perpetual motion isn’t achievable, so those options don’t describe real benefits.