A scaffold plank 9 feet long can extend over its end support by a maximum distance of how many inches?

A scaffold plank 9 feet long can extend over its end support by a maximum distance of how many inches?

• A. 12 inches
• B. 6 inches
• C. 18 inches
• D. 24 inches

Answer: (A)

The maximum distance that a scaffold plank can extend over its end support is determined by safety regulations and engineering guidelines. Typically, scaffolding standards allow a plank to extend beyond its support for a certain length to ensure stability while maintaining safety for workers using the scaffold. In this case, the correct answer indicates that the plank can safely extend up to 12 inches beyond its end support. This limit is set to avoid hazards such as tipping or excessive bending, which could lead to equipment failure or accidents. The 12-inch extension represents a compromise between usability and structural integrity, allowing workers to have additional reach while maintaining the scaffold's safety. The other choices provide options that exceed this recommended limit, which would not align with established safety practices. Therefore, it is crucial to adhere to the 12-inch extension guideline to ensure a safe working environment on scaffolds.

The maximum distance that a scaffold plank can extend over its end support is determined by safety regulations and engineering guidelines. Typically, scaffolding standards allow a plank to extend beyond its support for a certain length to ensure stability while maintaining safety for workers using the scaffold.

In this case, the correct answer indicates that the plank can safely extend up to 12 inches beyond its end support. This limit is set to avoid hazards such as tipping or excessive bending, which could lead to equipment failure or accidents. The 12-inch extension represents a compromise between usability and structural integrity, allowing workers to have additional reach while maintaining the scaffold's safety.

The other choices provide options that exceed this recommended limit, which would not align with established safety practices. Therefore, it is crucial to adhere to the 12-inch extension guideline to ensure a safe working environment on scaffolds.