單項選擇題

How is the size of chain determined?（）.

A.Length of link in inches
B.Diameter of metal in link in inches or centimeters
C.Links per fathom
D.Weight of stud cable in pounds

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單項選擇題

Freeing ports on a vessel with solid bulwarks（）.

A.prevent stress concentration in the bulwark
B.permit easy jettison of deck cargo in an emergency
C.provide openings through the bulwarks for mooring lin
D.allow water shipped on deck to flow off rapidly

單項選擇題

An advantage of nylon rope over manila rope is that nylon rope（）.

A.can be used in conjunction with wire or spring-lay rope
B.can be stored on decks exposed to sunlight
C.can hold a load even when a considerable amount of the yarns have been abraded
D.gives audible warning of overstress whereas manila does not