單項選擇題The volume of watertight spaces of a vessel above its waterline is the vessel’s().

A.free surface
B.marginal stability
C.reserve buoyancy
D.freeboard


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1.單項選擇題The upward pressure of displaced water is called().

A.buoyancy
B.deadweight
C.draft
D.freeboard

3.單項選擇題The term that indicates how many tons of cargo a vessel can carry is().

A.bale cubic
B.deadweight
C.gross tonnage
D.loaded displacement

4.單項選擇題The term length of a vessel in International Regulations for Preventing Collision at Sea 1972 means().

A.the length between perpendiculars
B.the registered length
C.the length overall
D.the length of waterplane on summer draft

5.單項選擇題The ship should have a slightly deeper draft().

A.on port side
B.on starboard side
C.at the port quarter
D.at the stern