Common HazardsCâu 25 / 100
Before entering an excavation deeper than 5 feet, what is generally required?
a.A protective system such as sloping, shoring, or shielding
b.Only a hard hat
c.Nothing, if the soil looks stable
d.Permission from customers
Giải thích
Excavations 5 feet or deeper generally require a protective system such as sloping, benching, shoring, or a trench shield, unless made entirely of stable rock. A competent person must inspect the excavation. Trench cave-ins are a deadly caught-in/between hazard.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A worker's arm is pulled into an unguarded rotating drive shaft. This is an example of which hazard?
- What is the primary purpose of a competent person on a construction site?
- Which control is considered MOST effective in the hierarchy of controls?
- Where should excavated soil (spoil pile) be placed relative to the edge of a trench?
- What is the maximum distance a worker in a trench 4 feet or deeper should be from a means of egress?
- Which practice best reduces struck-by hazards from vehicles and equipment on site?
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với OSHA 30-Hour Construction Safety · Quy trình kiểm tra