NV B General Building Practice Questions - Nevada B General Building Contractor Examination Exam

Per OSHA 1926.502(b), the top edge of a guardrail system shall be how high above the walking-working surface?

36 inches, plus or minus 1 inch 39 inches exactly 45 inches minimum 42 inches, plus or minus 3 inches

Correct Answer:

42 inches, plus or minus 3 inches

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