Quality Control & Inspection Flashcards

In cost-of-quality analysis, field inspection and material testing are classified as which cost category?

Answer: Appraisal costs

Appraisal costs are spent measuring and evaluating work to verify it conforms to requirements.

During a pre-pour reinforcing steel inspection, which items are most critical to verify?

Answer: Bar size, spacing, concrete cover, lap lengths, and support

Rebar inspection confirms size, placement, cover, splices, and chairs before concrete is placed.

Which code is the primary reference for welding inspection of structural steel in the United States?

Answer: AWS D1.1

AWS D1.1 Structural Welding Code - Steel sets welding procedures, qualifications, and inspection criteria.

For concrete exposed to freeze-thaw cycles, which field test verifies entrained air content?

Answer: ASTM C231 pressure method

ASTM C231 measures air content of fresh concrete using the pressure method.

What is a latent defect?

Answer: A defect not discoverable by reasonable inspection at the time of acceptance

Latent defects are hidden flaws that reasonable inspection would not reveal at acceptance.

On a statistical process control chart, a data point outside the control limits most likely indicates what?

Answer: A special (assignable) cause of variation needs investigation

Points beyond control limits signal special-cause variation that should be identified and corrected.

Under AIA A201, if the Architect rejects work that does not conform to the contract documents, who bears the cost of correcting it?

Answer: The contractor

The contractor must promptly correct rejected work at its own expense, including added testing and compensation for design services.