Certified Maintenance & Reliability Professional (CMRP) Practice Exam 2026 – All-in-One Guide to Master Your Certification!

MTTR stands for Mean Time to Repair, which is a key metric in maintenance and reliability management. This term specifically describes the average time required to repair a failed component or system, which includes the time taken for diagnostics, actual repair, and any necessary testing before the equipment is put back into service.

Understanding MTTR is essential for organizations looking to enhance their operational efficiency, as it provides insights into maintenance performance and helps identify areas for improvement. A lower MTTR indicates a more efficient maintenance process, allowing the organization to minimize downtime and improve asset reliability.

The other options represent different metrics that are also relevant in maintenance contexts but do not correctly define the acronym MTTR. Mean Time to Resolve typically pertains to the average time to solve a problem, often used in IT and customer service. Mean Time to Replace could refer to the time taken to replace a component rather than repair it. Mean Time to Restore is similar to MTTR but can sometimes include additional aspects of the recovery process beyond just the repair itself.