SafetyCâu 672 / 700
A framer must work on foot alongside moving equipment during daytime on a private site. Under a high-visibility apparel standard, which garment class provides the GREATEST conspicuity for the highest-risk situations such as high traffic speeds or low light?
a.Class 1
b.Class 2
c.Class 3
d.A plain bright T-shirt with no reflective material
Giải thích
Correct: Class 3 high-visibility apparel has the most background and reflective material (often covering the torso plus sleeves and/or legs) and is specified for the highest-risk conditions. Class 1 has the least material and suits low-speed, low-risk areas. Class 2 is a middle level for moderate traffic. A plain bright shirt with no retroreflective tape does not meet any ANSI/ISEA class.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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