NCCER Pipelayer Practice Questions - NCCER Pipelayer Level 1 Exam

What is the MAXIMUM allowed slope ratio for the sides of a Type C soil excavation according to OSHA?

3/4 horizontal to 1 vertical 1 horizontal to 1 vertical 1-1/2 horizontal to 1 vertical 2 horizontal to 1 vertical

1-1/2 horizontal to 1 vertical

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