Which of the following is NOT a common measure for ensuring quality control in engineering?

The answer is identified as the choice that stands out from established quality control measures. Common practices for ensuring quality in engineering include inspections, which involve evaluating products or processes against predetermined standards, and adhering to industry or company standards, which sets guidelines for acceptable practices and outputs. Statistical process control, a method that uses statistical tools to monitor and control a process, is also vital for maintaining quality throughout production.

In contrast, random guessing does not fit within effective quality control strategies. It lacks a systematic approach and cannot guarantee any level of quality assurance or improvement. Relying on chance does not provide the consistency or reliability necessary to meet quality standards in engineering. Quality control measures are designed to be systematic, repeatable, and data-driven, ensuring that outcomes meet desired specifications and performance levels.