The drywall lead verifies a control-joint layout: at what excavation depth is a protective system generally required unless an exception applies?
Correct Answer
B) 5 ft or deeper
5 ft or deeper is the controlling requirement.652(a)(1). Other choices: the distractors are related-looking contract or field terms, but they do not match the cited requirement for review item 144.
Why This Is the Correct Answer
5 ft or deeper is the controlling requirement.652(a)(1). Other choices: the distractors are related-looking contract or field terms, but they do not match the cited requirement for review item 144.
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