How does shoring differ from shielding in an excavation?
Correct Answer
B) Shoring supports trench faces to prevent movement; shielding protects workers if soil moves
Shoring is a support system intended to prevent soil movement, while shielding such as a trench box is designed to protect employees if a cave-in occurs. Other choices confuse protective systems with signage, access, or above-grade work.
Why This Is the Correct Answer
Shoring is a support system intended to prevent soil movement, while shielding such as a trench box is designed to protect employees if a cave-in occurs. Other choices confuse protective systems with signage, access, or above-grade work.
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