單項(xiàng)選擇題A spring line is a().

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


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1.單項(xiàng)選擇題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

2.單項(xiàng)選擇題A rope made of a combination of wire and fiber is known as().

A.independent
B.lang lay
C.preformed
D.spring lay

3.單項(xiàng)選擇題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

4.單項(xiàng)選擇題A pelican hook().

A.can be released while under strain
B.is used for boat falls
C.is used for extra heavy loads
D.is used for light loads only

5.單項(xiàng)選擇題A long pole with a hook at one end,used to reach for lines,is known as a().

A.pike pole
B.jack staff
C.line rod
D.hooker