RegulationsCâu 21 / 80
Which hazard class covers flammable and combustible liquids?
a.Class 3
b.Class 6
c.Class 4
d.Class 9
Giải thích
Class 3 covers flammable and combustible liquids such as gasoline and diesel. Class 4 covers flammable solids, Class 6 covers poisons and infectious substances, and Class 9 covers miscellaneous materials. Flammable liquids give off vapors that can ignite easily.
Luyện miễn phí toàn bộ 80 câu hỏi — không cần đăng ký.
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