Which inspection step verifies a part against all specifications before mass production begins?

• A. In-process inspection.
• B. First article inspection.
• C. Final inspection.
• D. Quality gate.

Answer: (B)

First Article Inspection is the step that verifies a part against all specifications before mass production begins. It involves comparing the first produced item to design drawings, material specifications, tolerances, finish requirements, and the documented manufacturing process. By using the same measurement methods and tests planned for production, it confirms that both the part and the process can meet every requirement. The results are compiled into an FAI report and reviewed by engineering and quality teams before mass production proceeds. In-process inspection checks parts during production, final inspection checks finished parts after production, and a quality gate is a broader checkpoint in the process—not specifically the formal pre-production verification of all specs on the first article.