單項選擇題When a davit-launched raft is lowered from a ship，upon becoming waterborne，the raft is released by（）.

A.activating the release lock of the hook
B.pulling smartly on the knobbed cocking lanyard
C.the effects of buoyancy removing the weight of the raft from the hook
D.releasing the boarding flap and the bowsing lines


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1.單項選擇題What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core（）.

A.Fiber core rope offers greater strength
B.Fiber core rope offers greater flexibility
C.Fiber core rope can be used at higher operating temperatures
D.Fiber core rope is the only type authorized for cargo runners

2.單項選擇題What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.

A.Jacob's ladder
B.Manropes
C.Heaving lines
D.All of the above

3.單項選擇題What does the term end-for-end refer to in regard to a wire towing hawser（）.

A.Cutting off the bitter and towing ends of the wire rope
B.Splicing two wire ropes together
C.Removing the wire rope from the drum and reversing it so that the towing end becomes the bitter end
D.Removing the wire rope from the drum and turning it over so that the wire bends in the opposite direction when rolled on a drum

4.單項選擇題What best describes an anchor buoy（）.

A.A black ball that is hoisted when the ship anchors
B.A buoy attached to the anchor
C.A buoy attached to the scope of an anchor chain
D.A mark of the number of fathoms in an anchor chain

5.單項選擇題What are the two main types of stud link chain（）.

A.Oil Rig chain and Oil Field Stud Link chain
B.Flash-butt welded chain and Di-Lok chain
C.Flash-butt welded chain and Oil Rig chain
D.Oil Field Stud Link chain and Flash-butt welded chain