Question

what safety measures are required for scaffolds that are open and exposed at heights above ten feet?

guardrails with at least a top rail, mid-rail, and toe board
only a top rail
safety helmets only
no safety measures are needed

Explanation:

Identify OSHA scaffold safety requirements

According to OSHA standard 1926.451(g)(1), each employee on a scaffold more than 10 feet (3.1 m) above a lower level must be protected from falling to that lower level.

Evaluate standard guardrail components

For open and exposed sides of scaffolds at these heights, standard fall protection includes a complete guardrail system. A complete system consists of a top rail, a mid-rail, and a toe board (to prevent tools and materials from falling off the edge).

Compare options

• "Guardrails with at least a top rail, mid-rail, and toe board" matches the safety standards.
• "Only a top rail" is insufficient as it lacks mid-rails and falling object protection.
• "Safety helmets only" does not prevent falls from heights.
• "No safety measures are needed" is incorrect.

Answer:

• (A) Guardrails with at least a top rail, mid-rail, and toe board (Correct answer)
• (B) Only a top rail
• (C) Safety helmets only
• (D) No safety measures are needed