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航海英語船舶浮性資料單項選擇題每日一練(2019.01.07)

單項選擇題
A tank which carries liquid is dangerous to the stability of a vessel when it is（）.
A.low in the vessel
B.completely empty
C.completely full
D.slack
單項選擇題
The angle to which a floating ship，with a negative initial metacentric height，lies while at rest in still water is the angle of（）.
A.trim
B.yaw
C.heel
D.loll
單項選擇題
Keeping the draft at or below the load line mark will insure that the vessel has adequate（）.
A.ballast
B.reserve buoyancy
C.displacement
D.rolling periods
單項選擇題
（）is the vertical distance measured on the vessel’s side amidships from the load water line to the upper side of the freeboard deck or a point corresponding to it.
A.Buoyancy
B.Freeboard
C.Draft
D.Displacement
單項選擇題
If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
A.require ballast
B.be down by the head
C.sink
D.float

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