What might be a consequence of poor process capabilities?

Poor process capabilities can lead to higher rates of defective parts. When a machining process lacks consistency, precision, or control, it is more likely to produce parts that do not meet the required specifications or standards. This inconsistency can arise from various factors such as inadequate machine maintenance, improper tooling, insufficient operator training, or flawed process design. As a result, the production output may comprise a substantial percentage of defective items, which can increase waste, affect overall productivity, and lead to customer dissatisfaction due to the lower quality of products.

In contrast, the other options suggest outcomes that would typically be associated with well-controlled and capable processes. Enhanced machine performance and increased product quality are generally the results of effective process management, while improved operator satisfaction often stems from working in a consistently productive and reliable environment. These positive outcomes highlight the importance of maintaining robust process capabilities to ensure quality and efficiency in manufacturing operations.