A.Manual fire detection system
B.Automatic fire detection system
C.Smoke detection system
D.Watchman's supervisory system
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B.CO2
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最新試題
Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
Which precaution should be taken when testing a line throwing gun?（）
When used to fight fire，carbon dioxide（）.
When towing astern what equipment should be stowed ready for use near the towline?（）
Where should life jackets be stowed?（）.
Which is a disadvantage of Halon as a fire extinguishing medium?（）
When two fire hose teams are attacking a fire they should（）.
When should a fire be ventilated?（）
Which portable fire extinguisher is normally recharged in a shore facility?（）
Which extinguishing agent is best for use on a magnesium fire?（）