TN BC-C Industrial Practice Questions - Tennessee Industrial (BC-C) Contractor Examination Exam

Proof-rolling the subgrade of a plant-floor slab is performed primarily to do which of the following?

Replace the laboratory Proctor test as the only compaction record Detect soft or yielding areas that need undercutting or stabilization before concrete is placed Determine the design soil bearing pressure for the structural engineer Satisfy OSHA trench-egress rules

Correct Answer:

Detect soft or yielding areas that need undercutting or stabilization before concrete is placed

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