🔍 Key Concepts

• Difference between preventive/planned maintenance and after-failure maintenance • What the word corrective implies in maintenance terminology • How condition-based and predictive maintenance try to avoid breakdowns

💭 Think About

• Ask yourself: Which option describes work that is done ONLY AFTER something has already failed or broken? • Which types of maintenance in the choices are designed to PREVENT breakdowns instead of reacting to them? • Think about standard engineering/maintenance terminology: which term is usually paired with "breakdown" or "failure"?

✅ Before You Answer

• Identify which answers clearly aim to prevent failure and set those aside. • Focus on the option whose main purpose is to restore equipment back to service after a failure. • Verify that the term you pick is commonly linked to after-the-fact repair rather than scheduled or monitored upkeep.