单项选择题
A.cover the area with foam B.cover the area with absorbent material C.wash down immediately with a fire hose D.wash down immediately with an oil dispersing solvent
Fire detecting systems on merchant vessels may be arran...
单项选择题Fire detecting systems on merchant vessels may be arranged to sense （）.
A.smoke B.rate of temperature rise C.ionized particles D.all of the above
On a tank vessel, which of the following substances wou...
单项选择题On a tank vessel, which of the following substances would be burning in a class "B" fire?（）
A.Oil B.Wood C.Rags D.Electrical wiring
A class "B" fire would most likely occur in the （）.A.ma...
单项选择题A class "B" fire would most likely occur in the （）.
A.main switchboard B.engine room bilge C.breathing compartment D.electric fresh water transfer pump
