單項(xiàng)選擇題What DOCS SALT WATER DRAFT means?().

A.It means summer draft
B.It means Maximum draft
C.It means Fresh Water draft
D.It means Seawater Draft


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1.單項(xiàng)選擇題Vessel shall possess()valid for duration of charter Party showing winches and derricks in order.

A.International Cargo Gear Certificate
B.International Loadline Certificate
C.International Safety Construction Certificate
D.International Seaman Identification

2.單項(xiàng)選擇題To calculate the free surface correction,it is necessary to divide the free-surface moments by the().

A.total weight of liquid loads
B.total displacement
C.lightweight
D.deadweight

3.單項(xiàng)選擇題The waterplane area is described as the intersection of the surface of the water in which a vessel floats and the().

A.baseline
B.vertical reference plane
C.hull
D.horizontal reference plane

4.單項(xiàng)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

5.單項(xiàng)選擇題The upward pressure of displaced water is called().

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