航海英语船舶货运基本知识章节练习(2018.02.16)

单项选择题
If a vessel takes a sudden，severe list or trim from an unknown cause，you should FIRST（）.
A.determine the cause before taking countermeasures
B.assume the shift is due to off-center loading
C.counterflood
D.assume the cause is environmental forces
单项选择题
Bilge keels are more effective at dampening rolls as the（）.
A.pitching increases
B.list increases
C.rolling increases
D.draft decreases
单项选择题
If the metacentric height is large，a floating vessel will（）.
A.be tender
B.have a slow and easy motion
C.be stiff
D.have a tendency to yaw
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
That center around which a vessel trims is called the（）.
A.tipping center
B.center of buoyancy
C.center of gravity
D.turning center
单项选择题
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
单项选择题
Pitching is angular motion of the vessel about what axis?（）.
A.Longitudinal
B.Transverse
C.Vertical
D.Centerline
单项选择题
If the metacentric height is small，a floating vessel will（）.
A.be tender
B.have a quick and rapid motion
C.be stiff
D.yaw
单项选择题
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
单项选择题
Horizontal fore or aft motion of a vessel is known as（）.
A.pitch
B.surge
C.sway
D.roll