Massachusetts Hoisting License Practice Test 2026 – Complete Exam Prep Resource

Undercutting the sides of a trench is not allowable because it greatly increases the risk of collapse. Trenches are inherently unstable, and when the sides are undercut, the supporting soil is removed, making it more likely for the walls to fail, which can lead to serious injury or even fatalities for workers in the trench. Proper trench safety involves using protective systems such as trench boxes or shoring to support the walls and prevent any potential cave-ins.

This understanding of trench safety is critical for maintaining a safe work site. Regulations and best practices emphasize that any excavation work must prioritize the stability of the trench walls to protect workers from potential hazards. This is why recognizing the dangers of undercutting is essential for ensuring compliance with safety standards and protecting the well-being of everyone on the site.