Which statement best captures QA/QC timing in a project?

• A. Throughout all phases
• B. Only during final review
• C. Only during sampling
• D. Only during design

Answer: (A)

QA/QC timing should span all phases of a project. Quality assurance sets up the standards, procedures, and training from the planning and design stages and continues through procurement, construction, testing, and handover. Quality control is the ongoing verification of work and outputs—inspections, tests, measurements, and data checks—carried out as activities progress. When QA/QC runs continuously, defects are prevented or caught early, data integrity is maintained, and issues are resolved when they are cheaper and easier to fix. Focusing QA/QC only at the end, or only during a single phase like design or sampling, creates gaps where problems can slip through and compromise quality, schedule, and costs.