SC Air Conditioning Practice Questions - South Carolina Air Conditioning Contractor Examination Exam

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OSHA 1926.652 generally requires a protective system (sloping, shoring, or shielding) for employees in an excavation that is 5 feet or deeper unless:

The trench is in any soil and the worker is only installing a condensate line The excavation is entirely in stable rock, or it is less than 5 feet deep and a competent person finds no cave-in potential Hard hats are worn The trench is deeper than 20 feet and unshored

Correct Answer:

The excavation is entirely in stable rock, or it is less than 5 feet deep and a competent person finds no cave-in potential

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