航海英语船舶及其结构章节练习(2017.12.21)

单项选择题
The result of two forces acting in opposite directions and along parallel lines，is an example of what type of stress?（）
A.Tensile
B.Compression
C.Shear
D.Strain
单项选择题
As a high pressure system approaches，the barometer reading（）.
A.stays the same
B.falls
C.rises
D.falls rapidly
单项选择题
A towing vessel’s capability is BEST measured by horsepower，bollard pull，maneuverability and（）.
A.displacement
B.stability
C.towrope pull
D.propeller design
单项选择题
At 0400 your vessel is dead in the water and in heavy fog. Your loran set fixes your position at LAT 41°12.1’N，LONG 72°43.5’W. Bottom samples are taken and indicate a composition of soft mud and shell. Your fathometer reads 40 feet. If the vessel draws 9 feet of water，which of the following is TRUE?（）
A.The bottom samples and fathometer reading prove the loran fix is reliable
B.The bottom samples and fathometer readings indicate that the loran fix is unreliable
C.The information collected indicates that the fathometer may be in error
D.The information collected indicates that the chart is most likely in error
单项选择题
Any firefighting equipment that is carried in addition to the minimum required number on a ship must（）.
A.meet the applicable standards
B.be marked as additional equipment
C.be stowed in a separate area
D.All of the above
单项选择题
Vertical partitions which provide strength and compartmentalization on a ship are called（）.
A.decks
B.bulkheads
C.joiner work
D.walls
单项选择题
Stability is determined principally by the location of two points in a vessel: the center of buoyancy and the（）.
A.metacenter
B.geometric center of the waterplane area
C.center of gravity
D.center of flotation
单项选择题
As the temperature of an air mass decreases，the（）.
A.absolute humidity decreases
B.relative humidity increases
C.specific humidity decreases
D.dew point rises
单项选择题
The antennas of the trucks on deck are not fitted（）.
A.in
B.on
C.out
D.with
单项选择题
Structural stress on a ship can be reduced by（）.
A.lessening the effect of environmental forces
B.even and symmetrical variable loading
C.local concentration of heavy consumables
D.increasing the metacentric height