The probability that a machine will run for a given amount of time without breakdown is called?

The probability that a machine will run for a specified interval without experiencing a breakdown is known as reliability rate. Reliability measures how consistently a system or component performs its intended function without failure for a given period under stated conditions. It is a critical aspect of system performance, particularly in industries where equipment uptime is vital.

In contrast, availability refers to the proportion of time that a system is operational and functional, considering both uptime and downtime due to failures and maintenance. Maintainability indicates how easily a machine or system can be repaired or serviced after a failure occurs. Quality rate generally refers to the proportion of produced items that meet quality standards, and while it is important in manufacturing processes, it does not pertain directly to the performance duration of machinery.