問題詳情
20. You want to enter a gas-free cargo tank on oil tanker and atmospheric condition of cargo tankwas checked prior to entering. What hydrocarbon vapor concentration you should get to ensuresafety?
(A) Less than 35% LFL (Lower Flammable Limit).
(B) Less than 10% LFL (Lower Flammable Limit).
(C) Less than 5% LFL (Lower Flammable Limit).
(D) Less than 1% LFL (Lower Flammable Limit).
參考答案
答案：D
難度：困難0.3
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用户評論
【KYLE】評論
（D）小於1％LFL（可燃下限）。
【林稚耕】評論
題目意思是您想進入油輪上的無氣貨艙，並在...