SafetyCâu 687 / 700
During a pre-lift inspection, which condition MOST clearly requires removing a synthetic web sling from service immediately?
a.Light surface fuzzing of the fibers with no cuts
b.Melting, charring, or acid/caustic burns on the sling, or missing/illegible identification tag
c.A small amount of dust on the sling body
d.The sling has been used on more than one job
Giải thích
Correct: melting, charring, chemical (acid or caustic) burns, or a missing/illegible capacity tag are all listed removal-from-service criteria because they signal lost strength or unknown rating. Light surface fuzzing without cuts or reduction of the load-bearing fibers is generally acceptable. Dust alone is not damage. Prior use on multiple jobs does not condemn a sling; its actual condition and legible tag do.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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