A.unoccupied space below the waterline
B.volume of intact space above the waterline
C.excess of the buoyant force over the gravity force
D.difference in the buoyant force in salt and fresh waters
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A.also called GM
B.the void portion of the ship below the waterline which is enclosed and watertight
C.affected by the number of transverse watertight bulkheads
D.the watertight portion of a vessel above the waterline
A.roll period
B.metacentric height
C.waterplane area
D.vessel's draft
A.ebb tide
B.flood tide
C.spring tide
D.slack water
A.cargo
B.box
C.cargo and box
D.rate weight
A.transverse moment
B.vertical moment
C.righting moment
D.inclining moment
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The center of volume of the immersed portion of the hull is called the（）.
The controlling depth of the river is（）.
The angle to which a floating ship，with a negative initial metacentric height，lies while at rest in still water is the angle of（）.
For an upright vessel，draft is the vertical distance between the keel and the（）.
A vessel would be referred to as tender when the weight of the cargo is（）.
A vessel is tender if cargo weight is（）.
Some cargoes are（）in weight but（）in size.
Owing to the big draft，the ship is not permitted to go alongside until the time of（）.
Reducing the liquid free surfaces in a vessel reduces the（）.
The center of flotation of a vessel is（）.