單項選擇題A well in the uppermost deck of a shelter deck vessel which has only a temporary means of closing for the purpose of gaining an exemption from tonnage measurement is called a(n)().

A.Exemption space
B.Tonnage deck
C.Cofferdam
D.Tonnage opening


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2.單項選擇題A stopper is().

A.A short length of line used for temporarily holding another line
B.A snatch block for handling a topping lift
C.An engine order telegraph
D.The brake on a cargo winch

3.單項選擇題A stay is().

A.Standing rigging
B.A downhaul
C.A halyard
D.A jib

4.單項選擇題A splice that can be used in running rigging,where the line will pass through blocks,is a().

A.Short splice
B.Long splice
C.Back splice
D.Spindle splice

5.單項選擇題A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a().

A.snatch block
B.threefold purchase
C.handy-billy
D.chockablock