What is the purpose of quality assurance in manufacturing and name three QC activities?

• A. QA ensures products meet requirements; QC activities include inspection, tensile testing, sampling plans.
• B. QA is about marketing budgets; QC activities include advertising.
• C. QA reduces product quality; QC tests cosmetics.
• D. QA replaces QC in all processes.

Answer: (A)

Quality assurance in manufacturing is about making sure products meet requirements by building quality into the processes and preventing defects from happening in the first place, rather than just catching problems after they occur. The three QC activities—inspection, tensile testing, and sampling plans—are practical methods used to verify quality: inspection checks parts during or after production for defects; tensile testing evaluates how strong a material or component is under pulling force; sampling plans determine how many items to test from a batch to make a reliable judgment about overall quality. This shows QA as a proactive, process-focused approach that uses QC tools to confirm that outputs meet the standards. The other ideas don’t fit this concept—they either misplace QA’s purpose or suggest replacing QC, which isn’t how QA and QC work together.