航海英语船舶稳性章节练习(2018.02.25)

单项选择题
To prevent loss of stability from free communication flooding you should（）.
A.close the cross-connection valve between the off-center tanks
B.completely flood high center tanks
C.ballast double bottom wing tanks
D.close any opening to the sea in an off-center tank
单项选择题
The trim and stability booklet must be approved by the（）.
A.International Maritime Organization
B.National Cargo Bureau
C.Society of Naval Architects and Marine Engineers
D.United States Coast Guard
单项选择题
The moment of a force is a measure of the（）.
A.turning effect of the force about a point
B.instantaneous value of the force
C.stability characteristics of the vessel
D.center of gravity location
单项选择题
In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.
A.insure that the hawser leads directly aft as it passes over the stern of the towing vessel
B.increase the stability of the towing vessel by raising the hawser off the deck
C.reduce chafing of the towing hawser
D.prevent fouling of the hawser on deck gear located on the stern of the towing vessel
单项选择题
The time required to incline from port to starboard and back to port again is called（）.
A.initial stability
B.range of stability
C.inclining moment
D.rolling period
单项选择题
In the event of damage to the DEEP WATER SHIP which results in flooding to one of the lower-hull tanks，pump from（）.
A.nearby damaged tanks
B.nearby undamaged tanks containing ballast
C.tanks on the opposite corner
D.the opposite trim tank
单项选择题
The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is（）.
A.right at the bow
B.one-third the length of the vessel from the bow
C.one-half the length of the vessel from the bow
D.two-thirds the length of the vessel from the bow
单项选择题
Fighting a fire in the galley poses the additional threat of（）.
A.contaminating food with extinguishing agent
B.spreading through the engineering space
C.loss of stability
D.a grease fire in the ventilation system
单项选择题
The downflooding angle for a ship is the maximum angle at which（）.
A.stability is positive
B.neutral equilibrium exists
C.the load line is not submerged
D.intact stability curves are valid
单项选择题
The effects of free surface on initial stability depend upon the dimensions of the surface of the free liquids and the（）.
A.volume of liquid in the tank
B.volume of displacement of the vessel
C.location of the tank in the vessel
D.height of the center of gravity of the vessel