An toànCâu 447 / 521
Excavated soil (spoil) and equipment must be kept at least how far back from the edge of a trench?
a.6 inches from the edge
b.2 feet from the edge
c.10 feet from the edge
d.There is no setback requirement
Giải thích
Spoil piles and equipment must be kept at least 2 feet from the trench edge (or be restrained) so the surcharge load does not trigger a cave-in and material does not roll back onto workers. 6 inches is too close, 10 feet is more than required, and 'no requirement' is incorrect.
Trích dẫn luật: Cal/OSHA Title 8 §1541Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The purpose of the main bonding jumper at a service is to:
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- Before digging near underground utilities in California, you are required to:
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