MMC Predictive & Preventive Maintenance

Question 1

What is the main difference between predictive maintenance and preventive maintenance?

Accepted Answer

Predictive maintenance uses data to anticipate failures, while preventive maintenance is scheduled regularly

Answer

Predictive maintenance (PdM) relies on real-time data from sensors and analytics to monitor equipment condition and predict when a failure is imminent, allowing maintenance to be performed just-in-time. In contrast, preventive maintenance (PM) is performed at predetermined intervals or based on usage, regardless of the equipment's actual condition. This fundamental difference allows PdM to optimize maintenance timing and reduce unnecessary interventions.

Question 2

Why is preventive maintenance important for maintaining equipment reliability?

Accepted Answer

It helps ensure equipment reliability and reduces the chances of unexpected breakdowns

Answer

Preventive maintenance involves routine inspections, servicing, and minor repairs performed at scheduled intervals to keep equipment in good working order. By proactively addressing potential issues and wear, it significantly reduces the risk of sudden, catastrophic failures. This approach enhances equipment reliability, minimizes costly downtime, and ensures consistent operational performance.

Question 3

How does predictive maintenance help optimize maintenance costs?

Accepted Answer

By anticipating failures and reducing unnecessary repairs, optimizing maintenance costs

Answer

Predictive maintenance uses data to forecast when equipment is likely to fail, allowing maintenance to be scheduled precisely when needed, rather than on a fixed schedule or after a breakdown. This 'just-in-time' approach prevents unnecessary maintenance on healthy equipment and avoids costly emergency repairs. By optimizing the timing of interventions, predictive maintenance significantly reduces overall maintenance expenses.

Question 4

Which of the following is a key benefit of preventive maintenance?

Accepted Answer

Extended asset lifespan and reduced failure rates

Answer

Preventive maintenance involves regularly scheduled inspections, servicing, and component replacements that keep equipment in optimal condition. By proactively addressing wear and tear, it prevents minor issues from escalating into major failures, thereby extending the operational life of assets. This systematic approach significantly reduces unexpected breakdowns and improves overall equipment reliability.

Question 5

What is the role of condition-based monitoring in predictive maintenance?

Accepted Answer

It provides real-time data to predict failures and plan maintenance

Answer

Condition-based monitoring (CBM) is a core component of predictive maintenance, using sensors and data analysis to continuously assess the health and performance of equipment. By monitoring parameters like vibration, temperature, and pressure, CBM can detect early signs of degradation or impending failure. This real-time data allows maintenance teams to accurately predict when intervention is needed, enabling proactive and optimized maintenance planning.

(MMC) Maintenance Management Certification Practice Test

(MMC) Maintenance Management Certification Practice Test

MMC Predictive & Preventive Maintenance