When measuring the timing of operations on a lathe, you are performing what type of test?

When measuring the timing of operations on a lathe, you are conducting a performance test. Performance testing involves evaluating how well a machine operates, specifically looking at its speed, efficiency, and overall productivity during its functions. In the case of a lathe, measuring timing directly relates to the machine's performance in executing tasks such as cutting or shaping materials within specified time frames.

Functional tests, in contrast, assess whether the machine operates correctly according to its design and intended capabilities. Visual tests typically involve checks for physical condition or visual inspections of components rather than timings. Diagnostic tests are used to identify problems or faults within the system rather than measuring operational efficiency. In this scenario, focusing on timing highlights the performance aspect of the lathe's operations.