單項(xiàng)選擇題All the following except()are fittings for securing and lashing containers on board ships.

A.stackers
B.twistlock
C.bridge fittings
D.containment booms


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1.單項(xiàng)選擇題A wire rope that has been overstrained will show().

A.a bulge in the wire where the strain occurred
B.a decrease in diameter where the strain occurred
C.a kink in the wire where the strain occurred
D.no visible effects of an overstrain

3.單項(xiàng)選擇題A sufficient amount of chain must be veered when anchoring a vessel to ensure().

A.the vessel has enough room to swing while at anchor
B.the anchor flukes bite into the ocean bottom
C.there is sufficient weight from the anchor and chain to prevent dragging
D.there is more chain out than there is in the chain locker

4.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

5.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