航海英语船舶货运基本知识章节练习(2018.02.11)

单项选择题
The angular motion of a ship in the athwartship is termed（）.
A.pitching
B.yawing
C.rolling
D.tracking
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 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
The difference between the forward and aft drafts is（）.
A.list
B.heel
C.trim
D.flotation
单项选择题
Angular motion about the vertical axis of a vessel is called（）.
A.yaw
B.surge
C.sway
D.roll
单项选择题
At an angle of loll，the righting arm (GZ) is（）.
A.maximum
B.negative
C.positive，but reflexive
D.zero
单项选择题
Semisubmersibles A and B are identical. However，A is more tender than B. This means that A relative to B has a（）.
A.lower KG
B.smaller GM
C.smaller roll angle
D.larger GZ
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
In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.
A.Longitudinal center of buoyancy and longitudinal center of gravity
B.Longitudinal center of floatation and longitudinal center of gravity
C.Longitudinal center of floatation and longitudinal center of buoyancy
D.Longitudinal tipping center and longitudinal center of gravity
单项选择题
The existence of liquids in partially full tanks or compartments of a ship causes a virtual rise in the height of the（）.
A.metacenter
B.center of buoyancy
C.center of flotation
D.center of gravity