航海英语船舶浮性章节练习(2018.02.20)

单项选择题
If the vertical center of gravity (VCG) of a ship rises 1.7 feet，the righting arm (GZ) for the various angles of inclination will（）.
A.decrease
B.increase
C.remain unchanged
D.be changed by the amount of GG' x cosine of the angle
单项选择题
The term length of a vessel in International Regulations for Preventing Collision at Sea 1972 means（）.
A.the length between perpendiculars
B.the registered length
C.the length overall
D.the length of waterplane on summer draft
单项选择题
For a floating vessel，the result of subtracting KG from KM is the（）.
A.height of the metacenter
B.height of the righting arm
C.height of the center of buoyancy
D.metacentric height
单项选择题
The change in trim of a vessel may be found by（）.
A.dividing the trim moments by MT1
B.subtracting the LCF from the LCB
C.looking at the Hydrostatic Properties Table for the draft of the vessel
D.dividing longitudinal moments by the displacement
单项选择题
A vertical shift of weight to a position above the vessel’s center of gravity will（）.
A.increase reserve buoyancy
B.decrease the righting moments
C.decrease KG
D.increase KM
单项选择题
The primary purpose of a load line is to establish required（）.
A.minimum freeboard
B.GM
C.transverse stability
D.fresh water allowances
单项选择题
During cargo operations，your vessel develops a list due to the center of gravity rising above the transverse metacenter. To correct the list，you should（）.
A.shift weight to the high side
B.shift weight to the centerline
C.add weight in the lower holds or double bottoms
D.remove weight from the lower holds or double bottoms
单项选择题
The ship should have a slightly deeper draft（）.
A.on port side
B.on starboard side
C.at the port quarter
D.at the stern
单项选择题
An unstable upright equilibrium position on a vessel means that the metacenter is（）.
A.lower than the center of gravity
B.at the same height as the center of gravity
C.higher than the baseline
D.on the longitudinal centerline
单项选择题
The difference between the starboard and port drafts due to wind or seas is called（）.
A.list
B.heel
C.trim
D.flotation