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單項選擇題

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

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單項選擇題

A hook that will release quickly is a（）.

A.longshore hook
B.margin hook
C.marginal hook
D.pelican hook

單項選擇題

（）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

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