Emergencies & HazardsCâu 91 / 120
What is the minimum fire extinguisher rating required on a vehicle transporting hazardous materials that requires placards?
a.A single 5 B:C extinguisher
b.A single extinguisher with a rating of at least 10 B:C
c.Two 2 B:C extinguishers
d.No extinguisher is required if the load is non-flammable
Giải thích
Placarded hazardous materials vehicles must carry an extinguisher rated at least 10 B:C, while other commercial vehicles need at least a 5 B:C or two units rated 4 B:C each. Smaller units do not meet the hazmat standard, and every commercial vehicle needs an extinguisher regardless of the cargo.
Trích dẫn luật: 49 CFR §393.95Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
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