單項(xiàng)選擇題Which of the following statements concerning the rigging of bosuns’ chairs and their use is TRUE（）.

A.Always secure the gantline to the chair with a bowline
B.Always have the chair hoisted with at least three turns on a winch drum
C.Any tools，paint pots etc．should be secured by lanyards
D.When riding a stay，make sure that the bow of the shackle passes through the becket of the bridle


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1.單項(xiàng)選擇題When two lines are spliced together,（）.

A.The size of the lines at the splice decreases
B.They are stronger than if knotted together
C.The overall strength of each line is increased
D.The bitter ends will resist rotting

2.單項(xiàng)選擇題When rigging a stage，the standing part should be fastened to the horns of a stage with which of the following hitches（）.

A.Clove hitch
B.Timber hitch
C.Marlinespike hitch
D.Double blackwall hitch

3.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

4.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

5.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