單項選擇題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


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2.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

3.單項選擇題What is a step in attaching a poured metal socket to a wire rope?（）

A.Etch the wire with acid
B.Install a wire seizing on the wire that will be inside the socket
C.Ensure the fiber core is well lubricated
D.Pour molten babbitt metal into the socket

4.單項選擇題What is a spill pipe?（）

A.A drainage pipe that carries rain or spray from an upper deck to a lower deck
B.A pipe under the anchor windlass leading to the chain locker
C.A chute，usually over the stern，to lead dumped garbage clear of the hull
D.An opening in the deck leading outside the hull

5.單項選擇題What happens to the pulling power of a winch when retrieving wire rope?（）

A.It increases
B.It decreases
C.It remains the same
D.It fluctuates，depending on the gearing system