单项选择题

What is the primary disadvantage of a permanent chain chaser system?（）

A.It requires anchor handling boats with more horsepower
B.Chain chasers work in shallow water only
C.Chain chasers will not work with piggyback anchors
D.It takes longer to deploy anchors using chain chasers

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单项选择题

What is the main reason to slush a wire rope?（）

A.Keep the wire soft and manageable
B.Lubricate the inner wires and prevent wear
C.Prevent kinking
D.Prevent rotting

单项选择题

What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions?（）

A.One shot of chain for every ten feet of water
B.One shot of chain for every fifteen feet of water
C.One shot of chain for every thirty feet of water
D.One shot of chain for every ninety feet of water

单项选择题

What is NOT suitable for use in making up the towing rig for a heavy，long ocean tow?（）

A.Chain
B.Ring
C.Solid thimble
D.A fishplate