单项选择题
A.cross connection line between two main fire lines B.special wrench for the couplings in a fire hose line C.tackle rigged to support a fire hose D.none of the above
A long splice in a line（）.A.is used in running riggingB...
单项选择题A long splice in a line（）.
A.is used in running rigging B.doubles the size of the line C.is only used on fiber rope D.is very weak
A hook that will release quickly is a（）.A.longshore hoo...
单项选择题A hook that will release quickly is a（）.
A.longshore hook B.margin hook C.marginal hook D.pelican hook
（）should not be considered as components as fire instal...
单项选择题（）should not be considered as components as fire installations.
A.fire pumps B.fire mains C.hydrants and hoses D.closing appliances which are kept permanently closed at sea
