TN BC-C Industrial Practice Questions - Tennessee Industrial (BC-C) Contractor Examination Exam

Per OSHA 1926.652, a protective system for an excavation more than 20 feet deep must be:

Selected from the manufacturer's tabulated data for 8-foot trenches, without further design Designed by a registered professional engineer Omitted if employees will be in the excavation less than 30 minutes Replaced by a ladder only, with no sloping, shoring, or shielding

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