What does MTTR stand for?

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Prepare for the Industrial Maintenance Test with study guides, flashcards, and multiple-choice questions. Each question includes hints and explanations to help you succeed. Master the concepts and ace your exam!

Multiple Choice

What does MTTR stand for?

Explanation:
MTTR captures how long, on average, it takes to get a failed item back up and running. It’s a measure of repair speed and the downtime associated with fixing problems. The term you’re looking for is Mean Time To Repair. The other phrases don’t match this concept: Mean Time Between Failures describes how long the system operates before a failure occurs, not how long repairs take; Maximum Time To Repair implies a worst-case time, not the typical average; Time To Repair Mean isn’t a standard term. In practice, you calculate MTTR by dividing the total repair time by the number of repairs in a given period, which may include diagnosing, part replacement, and verification that the system is back in service. For example, if three repairs took 2, 3, and 5 hours, MTTR would be (2+3+5)/3 = 3.33 hours.

MTTR captures how long, on average, it takes to get a failed item back up and running. It’s a measure of repair speed and the downtime associated with fixing problems. The term you’re looking for is Mean Time To Repair. The other phrases don’t match this concept: Mean Time Between Failures describes how long the system operates before a failure occurs, not how long repairs take; Maximum Time To Repair implies a worst-case time, not the typical average; Time To Repair Mean isn’t a standard term. In practice, you calculate MTTR by dividing the total repair time by the number of repairs in a given period, which may include diagnosing, part replacement, and verification that the system is back in service. For example, if three repairs took 2, 3, and 5 hours, MTTR would be (2+3+5)/3 = 3.33 hours.

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