航海英语船舶货运基本知识章节练习(2018.02.04)

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
A vessel is tender if cargo weight is（）.
A.concentrated high and the double bottoms empty
B.concentrated low and the double bottoms empty
C.evenly distributed vertically with the double bottoms full
D.concentrated and with the double bottoms full
单项选择题
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.vertical moment
C.longitudinal moment
D.transverse moment
单项选择题
Horizontal fore or aft motion of a vessel is known as（）.
A.pitch
B.surge
C.sway
D.roll
单项选择题
Although KG for a vessel in lightweight is relatively high，the vessel is stiff because（）.
A.KM is small
B.KM is high
C.BL is small
D.KB is large
单项选择题
The KM for a vessel may be determined by which of the following?（）.
A.Adding the KB and the BM
B.Subtracting the KB from the BM
C.Subtracting the GM from the KB
D.Adding the GM and the KB
单项选择题
During counterflooding to correct a severe list or trim aggravated by an off-center load，a ship suddenly takes a list or trim to the opposite side. You should（）.
A.continue counterflooding in the same direction
B.continue counterflooding，but in the opposite direction
C.immediately stop counterflooding
D.deballast from the low side
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
The downflooding angle for a ship is the minimum angle at which（）.
A.the load line becomes submerged
B.a non-watertight opening is at still water level
C.offset becomes excessive
D.reserve buoyancy is a maximum
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