Safety第 98 / 100 题
When climbing to prune a tree, a professional arborist relies mainly on what for fall protection?
a.Standing on the top rung of a stepladder
b.A proper climbing system with rope, harness (saddle), and secure tie-in point
c.Holding onto branches with one hand only
d.No protection for low limbs
解析
Professional tree climbers use a rope-and-saddle climbing system tied into a sound anchor point to protect against falls while working aloft. Standing on the top of a ladder or relying on hand grip is unsafe. Proper tie-in and inspected gear are essential for tree work.
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