单项选择题
A.are made of bronze，brass，or soft alloy metals B.should be painted red in order to identify hose lengths C.are specially hardened to prevent crushing D.should be greased frequently
Fire fighting equipment requirements for a particular v...
单项选择题Fire fighting equipment requirements for a particular vessel may be found on the（）.
A.4Certificate of Inspection B.Certificate of Seaworthiness C.Classification Certificate D.Certificate of Registry
Fire extinguishing agents used on Class C fires must be...
单项选择题Fire extinguishing agents used on Class C fires must be（）.
A.able to absorb heat B.water based C.nonconducting D.nontoxic
Fire extinguishers on inspected vessels are numbered by...
单项选择题Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.
A.used for electrical fires only B.the smallest C.the most accessible D.the most effective
