SafetyCâu 563 / 700
A load is lifted with a two-leg sling. As the angle between the sling legs and the load becomes smaller (the legs spread wider), what happens to the tension in each leg?
a.The tension in each leg increases, reducing safe capacity
b.The tension decreases, increasing safe capacity
c.The tension stays the same regardless of angle
d.The tension only matters for single-leg slings
Giải thích
As the horizontal angle of the sling legs decreases (legs spread wider apart), the tension in each leg increases sharply for the same load, reducing the sling's safe working capacity. Option b has it backward. Option c ignores basic rigging geometry. Option d is false; angle affects multi-leg slings most. Riggers must use load charts and keep sling angles as steep as practical to stay within capacity.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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