shape of the vessel's underwater hull remains the same
vessel's center of gravity shifts to the center of the vessel's underwater hull
vessel's center of buoyancy shifts to the center of the vessel's underwater hull
vessel's mean draft increases
第1题：
With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．
A.longitudinal centerline
B.center of flotation
C.original vertical centerline
D.metacenter
第2题：
The Vessel not to be ______ to force ice，but to follow ice-breaker if required．
A.Made
B.Contained
C.Supplied
D.Obliged
第3题：
A vessel is "listed" when it is ______.
A.down by the head
B.down by the stern
C.inclined due to off-center weight
D.inclined due to wind
第4题：
How would you pass a red buoy in the maritime buoyage system “A”?______.
A.keep the buoy on the vessel’s starboard side when approaching a port and on the vessel’s port side when leaving
B.keep the buoy on the vessel’s port side when approaching a port and on the vessel’s starboard side when leaving
C.keep the buoy on the vessel’s starboard side when approaching and leaving
D.keep the buoy on the vessel’s port side when approaching and leaving
第5题：
For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force ______.
A.only when there is positive stability
B.only when there is negative stability
C.only when there is neutral stability
D.at all times
第6题：
On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put ______．
A.full ahead
B.full astern
C.half ahead
D.slow astern
第7题：
For GMDSS，when may a compulsory vessel not be allowed to leave port ________．
A.When the vessel is in an overloaded condition
B.When the vessel has arranged for both duplication of equipment AND shore-based maintenance
C.When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged
D.When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions
第8题：
A vessel is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is ______.
A.positive
B.negative
C.zero
D.vertical
第9题：
For a vessel inclined by the wind, multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the ______.
A.righting moment
B.longitudinal moment
C.transverse moment
D.vertical moment
第10题：
In small angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the ______.
A.center of gravity
B.center of flotation
C.metacenter
D.metacentric height