Question

unless made in entirely stable rock, at what depth is a protective system required for a trench?
select the 2 answer options that apply:

• any depth if the competent person says so
• 5 feet and greater
• only at depths greater than 10 feet
• only at depths greater than 20 feet

if you need to review this content, it can be found in the excavation risks module of t

Explanation:

According to OSHA (Occupational Safety and Health Administration) regulations, for trenches not in entirely stable rock, a protective system is required at 5 feet (1.524 meters) and greater depth. Also, a competent person (as defined by OSHA) can require a protective system at any depth if they assess the conditions as hazardous.

Answer:

Any depth if the competent person says so, 5 feet and greater.