单项选择题
A.mooring line made of spring lay wire rope B.mooring line running diagonally to the keel C.mooring line parallel to the keel D.wire rope used for securing an anchor buoy
A six-strand composite rope made up of alternate fiber ...
单项选择题A six-strand composite rope made up of alternate fiber and wire strands around a fiber core is called（）.
A.Spring lay B.Lang lay C.Cable lay D.Alternate lay
A rope made of a combination of wire and fiber is known...
单项选择题A rope made of a combination of wire and fiber is known as（）.
A.independent B.lang lay C.preformed D.spring lay
A permanent chain chasing system is used to（）.A.clean a...
单项选择题A permanent chain chasing system is used to（）.
A.clean anchor chain as it's hauled in B.recover anchors which have lost their buoys C.run and retrieve anchors D.prepare anchor chain for inspection
