Arizona Plumbing Practice Exam 2025 – All-in-One Guide to Master Your Plumbing Certification!

Question: 1 / 400

In terms of plumbing safety, what depth necessitates trench protection according to OSHA regulations?

4 feet

5 feet

The correct answer is that trench protection is required at a depth of 5 feet according to OSHA regulations. This requirement is in place to ensure the safety of workers who may be in or near the trench. Trench collapses can occur unexpectedly, and the risk increases with depth. At 5 feet, the potential for a collapse is significant enough that OSHA mandates protective measures, such as sloping, shoring, or shielding, to prevent such incidents.

This regulation helps to protect workers from serious injuries or fatalities that can arise from trench cave-ins, aligning with OSHA's broader mission to ensure safe working conditions. Understanding these safety regulations is crucial for any plumbing professional working with excavation and trenching tasks, as it directly affects workplace safety standards.

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6 feet

7 feet

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