Inspection Techniques & Procedures Flashcards
7 cards from real CCI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Inspection Techniques & Procedures flashcards as text
When performing a moisture-density relationship test (Proctor test) for soil compaction, the inspector is establishing:
Answer: Optimum moisture content and maximum dry density for the specific soil
The Proctor test determines the optimum moisture content at which a specific soil achieves its maximum dry unit weight under a given compaction effort.
An inspector observes that the contractor is placing concrete in layers exceeding 24 inches without re-vibrating. The RISK associated with this practice is:
Answer: Cold joints and inadequate consolidation between lifts
Layers thicker than vibrator reach without re-vibrating cause cold joints and poor consolidation between lifts, weakening the structure.
Which document governs the minimum quality requirements for structural steel used in a project if no other standard is specified?
Answer: ASTM A36 or ASTM A992
ASTM A36 and A992 are the most common baseline structural steel specifications; A992 is standard for wide-flange sections.
A field weld is found to have an undercut depth of 1/16 inch in a tension member. Per AWS D1.1, this is:
Answer: Rejectable without engineer approval
AWS D1.1 limits undercut to 1/32 inch in tension members; 1/16 inch exceeds that limit and is rejectable.
When inspecting underground utility installation, the inspector verifies bedding material placement primarily to ensure:
Answer: Uniform support to prevent differential settlement and pipe stress
Proper bedding provides uniform support along the pipe barrel, preventing point loads that cause cracking or joint failure.
A construction inspector is asked to witness a pressure test on a new water main. The test pressure is typically held for how long under AWWA standards?
Answer: 2 hours
AWWA C600 specifies a 2-hour hydrostatic pressure test to detect leaks and verify pipe integrity after installation.
When reviewing reinforcing steel placement, the inspector finds bars spliced in a tension zone without an approved lap splice length. The inspector should:
Answer: Issue a nonconformance notice and halt further concrete placement
Insufficient lap splice lengths in tension zones reduce structural capacity; the inspector must halt work and issue a nonconformance notice.