單項(xiàng)選擇題When rigging a bosun’s chair，a tail block or lizard is used to（）.

A.guide the bosun's chair down a stay when applying a protective coating
B.run paint or tools up to a sailor in a chair with a heaving line
C.keep a bosun's chair from swinging with the ship's motion
D.reeve the gantline through


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1.單項(xiàng)選擇題When paying out nylon line from around the bitts（）.

A.stand clear of the bitts and use two or more round turns under your figure eights
B.you can surge the line even with a single turn
C.no extra turns are necessary since nylon has a high coefficient of friction
D.stand in the bight of the line

2.單項(xiàng)選擇題When attempting to free an anchor jammed in the hawsepipe，the simplest method of freeing it may be（）.

A.Starting the disengaged windlass at high speed
B.Rigging a bull rope to pull it out
C.To grease the hawsepipe
D.To pry it loose with a short piece of pipe

3.單項(xiàng)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

4.單項(xiàng)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

5.單項(xiàng)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