Common HazardsCâu 27 / 100
What is the maximum distance a worker in a trench 4 feet or deeper should be from a means of egress?
a.100 feet
b.50 feet
c.25 feet
d.There is no requirement
Giải thích
In trenches 4 feet or deeper, a stairway, ladder, ramp, or other safe means of egress must be within 25 feet of workers. This ensures a quick exit in an emergency such as a cave-in or water intrusion. The means of egress must extend above the trench top edge.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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