SC Wood Frame Structures Practice Questions - South Carolina Wood Frame Structures Contractor Examination Exam

When does 29 CFR 1926.652 require a cave-in protective system in an excavation that is not entirely in stable rock?

Only when the excavation is 8 feet or deeper Only in Type C soil; Type A soil never needs a protective system In every excavation deeper than 18 inches When the excavation is 5 feet or deeper, unless a competent person finds no indication of a potential cave-in in a cut less than 5 feet

Correct Answer:

When the excavation is 5 feet or deeper, unless a competent person finds no indication of a potential cave-in in a cut less than 5 feet

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