Quality Assurance Flashcards
7 cards from real ASCE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Quality Assurance flashcards as text
Which ASTM standard governs the compressive strength testing of cylindrical concrete specimens?
Answer: ASTM C39
ASTM C39 is the standard test method for compressive strength of cylindrical concrete specimens.
A field technician measures the consistency of fresh concrete by filling an inverted cone and recording how far the concrete drops. Which standard applies?
Answer: ASTM C143
ASTM C143 covers the slump test of hydraulic-cement concrete.
Under the International Building Code, special inspection and testing requirements are found primarily in which chapter?
Answer: Chapter 17
IBC Chapter 17 covers special inspections and tests.
Which ASTM standard covers in-place density and water content of soil using nuclear methods?
Answer: ASTM D6938
ASTM D6938 is the standard for nuclear density/moisture gauge testing at shallow depth.
The Modified Proctor test (ASTM D1557) differs from the Standard Proctor (ASTM D698) primarily because it uses:
Answer: Higher compactive effort with a heavier hammer and greater drop
Modified Proctor uses a 10-lb hammer dropped 18 in., giving about 56,000 ft-lbf/ft³ versus about 12,400 for Standard.
On a statistical process control chart, a single test result plotted above the upper control limit most likely indicates:
Answer: A special (assignable) cause of variation
Points outside the control limits signal special-cause variation that should be investigated.
Which is NOT a typical disposition for a nonconformance report (NCR) in construction quality management?
Answer: Waive inspection for remaining work
Standard NCR dispositions are use-as-is, repair, rework, or reject; waiving future inspections is not a disposition.