For a floor opening, which size triggers the specified safety requirement?

For a floor opening, which size triggers the specified safety requirement?

• A. 6 inches
• B. greater than 12 inches
• C. 18 inches
• D. 2 feet

Answer: (B)

The main idea is protecting workers from falls by guarding floor openings that are large enough to pose a risk. OSHA requires a protective measure—such as a cover or guardrail—when a floor opening exceeds a certain size. The threshold is openings that are greater than 12 inches in their least dimension. That makes the option describing this threshold the best answer, because it specifies the size at which the safeguard must be used. A hole smaller than or equal to 12 inches does not meet the triggering condition, so it does not automatically require the same protection. In practice, if you have an opening larger than 12 inches, you must implement a guard or cover to prevent someone from stepping into it; smaller openings don’t reach that trigger based on the standard.

The main idea is protecting workers from falls by guarding floor openings that are large enough to pose a risk. OSHA requires a protective measure—such as a cover or guardrail—when a floor opening exceeds a certain size. The threshold is openings that are greater than 12 inches in their least dimension. That makes the option describing this threshold the best answer, because it specifies the size at which the safeguard must be used. A hole smaller than or equal to 12 inches does not meet the triggering condition, so it does not automatically require the same protection. In practice, if you have an opening larger than 12 inches, you must implement a guard or cover to prevent someone from stepping into it; smaller openings don’t reach that trigger based on the standard.