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

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A simple-slope trench in Type C soil is 8 feet deep with a 3-foot-wide bottom. Using OSHA’s maximum allowable Type C slope of 1½ horizontal to 1 vertical, what is the minimum top width?
Correct Answer:
27 feet

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