Fall ProtectionCâu 56 / 100
What is the '3-point contact' rule when climbing a ladder?
a.Keep three limbs in contact with the ladder at all times
b.Touch the ladder three times before climbing
c.Use only three rungs
d.Have three workers hold it
Giải thích
Three-point contact means keeping two hands and one foot, or two feet and one hand, on the ladder at all times while climbing. This maintains stability and reduces the chance of falling. Workers should carry tools in a belt or hoist them separately rather than in their hands.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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