單項選擇題Aboard damaged vessels,the MOST important consideration is preserving().

A.bilge pumping capacity
B.reserve buoyancy
C.level attitude
D.instability


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1.單項選擇題A vessel has a strong wind on the port beam. This has the same affect on stability as().

A.weight that is off-center to starboard
B.increasing the draft
C.reducing the freeboard
D.increasing the trim

2.單項選擇題A flooded leg on a lift boat would adversely affect the vessel’s stability underway by().

A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center

3.單項選擇題()is the tendency of a vessel to return to its original position after it is displaced therefrom.

A.Inclining moment
B.Stability
C.Shearing force
D.Bending moment

4.單項選擇題The tendency of a vessel to return to its original trim after being inclined by an external force is().

A.equilibrium
B.buoyancy
C.transverse stability
D.longitudinal stability

5.單項選擇題The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is().

A.right at the bow
B.one-third the length of the vessel from the bow
C.one-half the length of the vessel from the bow
D.two-thirds the length of the vessel from the bow