單項(xiàng)選擇題The center of flotation of a vessel is the point in the waterplane().

A.about which the vessel lists and trims
B.which coincides with the center of buoyancy
C.which,in the absence of external forces,is always vertically aligned with the center of gravity
D.which is shown in the hydrostatic tables as VCB


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1.單項(xiàng)選擇題The angular motion of a ship in the athwartship is termed().

A.pitching
B.yawing
C.rolling
D.tracking

2.單項(xiàng)選擇題That center around which a vessel trims is called the().

A.tipping center
B.center of buoyancy
C.center of gravity
D.turning center

3.單項(xiàng)選擇題Semisubmersibles A and B are identical. However,A is more tender than B. This means that A relative to B has a().

A.lower KG
B.smaller GM
C.smaller roll angle
D.larger GZ

4.單項(xiàng)選擇題Progressive flooding may be indicated by().

A.ballast control alarms
B.excessive draft
C.excessive list or trim
D.a continual worsening of list or trim

5.單項(xiàng)選擇題Pitching is angular motion of the vessel about what axis?().

A.Longitudinal
B.Transverse
C.Vertical
D.Centerline