NM CID GF-5 Practice Questions - New Mexico CID GF-5 Recreation Areas Contractor Examination Exam

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A 6-foot-deep Type B irrigation trench is 8 feet wide at the bottom. If the contractor uses a simple 1:1 slope on both sides and no shield, what is the minimum top width?

8 feet 14 feet 20 feet 26 feet

Correct Answer:

20 feet

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