更多"The center of the underwater volume"的相关试题:
[单项选择]For a floating vessel,the center of the floating is the point in the waterpiane.（）.
A. aboat 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]The center of volume of the immersed portion of the hull is called the（）.
A. center of buoyancy
B. center of floatation
C. center of gravity
D. tipping center
[单项选择]For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force（）.
A. only when there is positive stability
B. only when there is negative stability
C. only when there is neutral stability
D. at all times
[单项选择]For a floating vessel，the center of buoyancy and the metacenter are in the line of action of the buoyant force（）.
A. only when there is positive stability
B. only when there is negative stability
C. only when there is neutral stability
D. at all times
[单项选择]For a floating vessel，the center of flotation 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]The two factors which make underwater hull repair difficult are accessibility and the（）.
A. availability of tools
B. shape of the hull
C. pressure exerted by the water
D. threat of progressive flooding
[单项选择]Upon underwater detection, there were no apparent defects on the bottom plates, bilge keels,rudder and propeller of the said vessel. This kind of wording usually appeared on（）.
A. ship surveyor's report
B. a ship's certificate
C. a cargo inspection report
D. a dive survey report
[单项选择]Upon underwater detection，there were no apparent defects on the bottom plates，bilge keels，rudder and propeller of the said vessel.This kind of wording usually appeared on（）.
A. ship surveyor's report
B. a ship's certificate
C. a cargo inspection report
D. a diver survey report
[单项选择]The two courses of action if the underwater hull of a ship is severely damaged are to plug the openings and to（）.
A. dewater the compartment
B. establish and maintain flooding boundaries
C. secure power to the compartment
D. counter flood to maintain even keel
[单项选择]A snag or other underwater obstruction may form a（）.
A. V-shaped ripple with the point of the V pointing upstream
B. V-shaped ripple with the point of the V pointing downstream
C. small patch of smooth water on a windy day
D. smoothing out of the vessel's wake
[单项选择]A floating ship with an initial negative metacentric height（）.
A. will capsize
B. will incline further
C. may lie at an angle of loll
D. may be initially level
[单项选择]An inflatable liferaft is floating in its container，attached to the ship by its painter，as the ship is sinking rapidly. Which action should be taken with respect to the liferaft container? （）
A. Cut the painter line so that it will not pull the liferaft container down
B. Swim away from the container so that you will not be in danger as it goes down
C. Take no action as the pull on the painter will cause the liferaft to inflate and open the container
D. Manually open the container and inflate the liferaft with the hand pump
[单项选择]Floating, not controlled, without a clearly determinable direction means（）.
A. grounding
B. sailing
C. adrift
D. running into danger
[单项选择]Generally the gudgeon pin is fully floating in both connecting rod small end and （）.
A. the crosshead
B. the crankshaft
C. large end
D. the piston bosses
[单项选择]FLOATING，NOT CONTROLLED，WITHOUT A CLEARLY DETERMINABLE DIRECTION means（）.
A. Grounding
B. Sailing
C. Adrift
D. Running into danger
[单项选择]（）is a roud-shaped underwater part in the front of the ship.The purpose is to cre-ate less friction with water so that the ship moves more easily.
A. The bulbous bow
B. The anchor
C. The bow thruster
D. The propeller
