AL Municipal Utility Practice Questions - Alabama Municipal And Utility Contractor Examination Exam

Under OSHA 29 CFR 1926 Subpart P, when is a protective system generally required for employees working in a trench?

When the trench is 3 feet or deeper When the trench is 5 feet or deeper, unless made entirely in stable rock Only when the trench is 10 feet or deeper Only when groundwater is present

Correct Answer:

When the trench is 5 feet or deeper, unless made entirely in stable rock

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