NM CID GF-9 Practice Questions - New Mexico CID GF-9 Utility Lines Contractor Examination Exam

Trench backfill compacting well below or well above optimum moisture typically results in:

Higher density than the laboratory Proctor maximum Lower in-place density, pumping or crumbling lifts, and future settlement of the trench Automatic passing of the hydrostatic pipe test A change of OSHA soil type from C to A

Correct Answer:

Lower in-place density, pumping or crumbling lifts, and future settlement of the trench

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