单项选择题
A.kept in nonmetal containers B.discarded as soon as possible C.cleaned thoroughly for reuse D.kept in the paint locker
A high-velocity fog stream can be used in fire fighting...
单项选择题A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.
A.using a 2-1/2 inch hose B.there is an outlet for the smoke and heat C.the fire is totally contained by the ship's structure D.at least two fog streams can be used
A fire hose with a nozzle attached must be connected to...
单项选择题A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the（）.
A.fire hose might be damaged by cargo operations B.vessel is in port C.fire-main system is not charged D.fire pumps are used for purposes other than supplying water to the fire main
If you are fighting a fire below the main deck of your ...
单项选择题If you are fighting a fire below the main deck of your vessel，which action is most important concerning the stability of the vessel?（）.
A.Shutting off electricity to damaged cables B.Pumping fire-fighting water overboard C.Maneuvering the vessel so the fire is on the lee side D.Removing burned debris from the cargo hold
