AL Tunnel Practice Questions - Alabama Tunnel Contractor Examination Exam

In a surface excavation, when is a protective system required under OSHA 1926.652?

At 5 feet of depth or deeper, unless a competent person finds no indication of a potential cave-in in an excavation less than 5 feet deep Only at 20 feet or deeper Never in Type A soil Only if employees will sleep in the trench

Correct Answer:

At 5 feet of depth or deeper, unless a competent person finds no indication of a potential cave-in in an excavation less than 5 feet deep

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