單項(xiàng)選擇題When riveted joints occur at the ends of plating they are called().

A.trailers
B.terminals
C.seams
D.butts


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1.單項(xiàng)選擇題When passing a hawser to the dock you would first use what line().

A.Gantline
B.Heaving line
C.Preventer
D.Warp

2.單項(xiàng)選擇題When cutting wire rope,seizings are put on each side of the cut.The seizings prevent the wire from unlaying and also().

A.Maintain the original balance of the tension in the wires and strands
B.Prevent moisture from entering between the wires at the cut end
C.Forces lubricant from the core to protect the raw,cut end
D.All of the above

3.單項(xiàng)選擇題When a line is subject to wear where it passes through a mooring chock,it should be().

A.wormed,parceled,and served
B.wrapped with heavy tape
C.wrapped with chafing gear
D.wrapped in leather

4.單項(xiàng)選擇題When a line is laid down in loose,looping figure-eights,it is said to be().

A.Faked
B.Flemished
C.Coiled
D.Chined

5.單項(xiàng)選擇題What type of line melts easiest().

A.Wire
B.Dacron
C.Nylon
D.Polypropylene