Construction Supervisor License Practice Exam

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What is the maximum allowable overhang for a platform on scaffolding without additional fastening or guardrails?

12" for platforms 10 feet and less; 18" for platforms more than 10 feet
15" for platforms 10 feet and less; 18" for platforms more than 10 feet
12" for platforms 10 feet and less; 24" for platforms more than 10 feet
15" for platforms 10 feet and less; 22" for platforms more than 10 feet

The correct answer is: 12" for platforms 10 feet and less; 18" for platforms more than 10 feet

The maximum allowable overhang for a platform on scaffolding is determined to ensure stability while maintaining safety for workers. The guideline states that a maximum overhang of 12 inches is permissible for platforms that are 10 feet or less in height. For platforms that exceed 10 feet in height, a maximum overhang of 18 inches is allowed. This is based on safety standards that prevent excessive instability that could lead to tipping or falling. The rationale behind these limits is to balance the need for workspace on scaffolding with the structural integrity of the scaffold itself. Overhanging platforms increase the risk of tipping, and as the height of the platform increases, this risk becomes greater. Therefore, the restrictions in place help to minimize hazards associated with scaffolding use. It is crucial for construction supervisors to adhere to these standards as they play a vital role in upholding the safety of the construction site.