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单选题
The point to which your vessel’s center of gravity (G) may rise and still permit the vessel to have positive stability is called the（）.
A
metacentric point
B
metacenter
C
metacentric radius
D
tipping center
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考题
On a vessel, multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n) ______.A.transverse momentB.vertical momentC.righting momentD.inclining moment
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With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．A.longitudinal centerlineB.center of flotationC.original vertical centerlineD.metacenter
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A flooded lifeboat on board a vessel would adversely affect the vessel’s stability by ______.A.increasing the righting momentB.decreasing the vessel’s displacementC.increasing the reserve buoyancyD.shifting the CG (center of gravity) off center
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A vessel may acquire a list if the center of gravity is ______. ① Off the centerline. ② Too high in the vessel.A.① onlyB.② onlyC.Either ① or ②D.Neither ① nor ②
考题
Aboard a vessel, dividing the sum of the longitudinal moments by total weight yields the vessel’s ______.A.inclining momentsB.righting momentsC.vertical momentsD.longitudinal position of the center of gravity
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For a floating vessel, the center of flotation is the point in the waterplane ______.A.about which the vessel lists and trimsB.which coincides with the center of buoyancyC.which, in the absence of external forces, is always vertically aligned with the center of gravityD.which is shown in the hydrostatic tables as VCB
考题
单选题What is the definition of transverse metacenter?（）A
The distance between the actual center of gravity and the maximum center of gravity that will still allow a positive stabilityB
The point to which G may rise and still permit the vessel to possess positive stabilityC
The sum of the center of buoyancy and the center of gravityD
The transverse shift of the center of buoyancy as a vessel rolls
考题
单选题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 gravityB
Longitudinal center of floatation and longitudinal center of gravityC
Longitudinal center of floatation and longitudinal center of buoyancyD
Longitudinal tipping center and longitudinal center of gravity
考题
单选题Aboard a vessel，multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s（）.A
TCGB
transverse momentC
righting momentD
transverse free surface moment
考题
单选题The center of flotation of a vessel is the point in the waterplane（）.A
about which the vessel lists and trimsB
which coincides with the center of buoyancyC
which，in the absence of external forces，is always vertically aligned with the center of gravityD
which is shown in the hydrostatic tables as VCB
考题
单选题The center of flotation of a vessel is（）.A
the center of volume of the immersed portion of the vesselB
the center of gravity of the water planeC
that point at which all the vertical downward forces of weight are considered to be concentratedD
that point at which all the vertical upward forces of buoyancy are considered to be concentrated
考题
单选题Aboard a vessel, dividing the sum of the vertical moments by the total weight yields the vessel’s（）.A
height of the center of gravity A.LCGB
vertical momentC
righting momentD
inclining moment
考题
单选题When a vessel is inclined by an external force，the（）.A
shape of the vessel's underwater hull remains the sameB
vessel's center of gravity shifts to the center of the vessel's underwater hullC
vessel's center of buoyancy shifts to the center of the vessel's underwater hullD
vessel's mean draft increases
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单选题A flooded lifeboat on board a vessel would adversely affect the vessel’s stabbility by（）.A
increasing the righting momentB
decreasing the vessel's displacementC
increasing the reserve buoyancyD
shifting the CG(center of gravity) off center
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单选题Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in th eload’s（）.A
TCGB
transverse momentC
righting momentD
transverse free surface moment
考题
单选题0n a vessel,multipiying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)（）.A
transverse momentB
vertical momentC
righting momentD
inclining moment
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单选题Aboard a vessel，dividing the sum of the longitudinal moments by the total weight yields the vessel’s（）.A
inclining momentsB
righting momentsC
vertical momentsD
longitudinal position of the center of gravity
考题
单选题A line of position is（）.A
a line connecting two charted objectsB
a line on some point of which the vessel may be presumed to be locatedC
the position of your vesselD
not used in a running fix
考题
单选题A vessel continually lists to one side and has a normal rolling period. Which statement is TRUE?（）.A
The vessel has negative GMB
The center of gravity is on the centerlineC
The list can be corrected by reducing KMD
The vessel has asymmetrical weight distribution
考题
单选题The center of the underwater volume of a floating vessel is the（）.A
center of buoyancyB
center of flotationC
uncorrected height of the center of gravity of the vesselD
center of gravity of the vessel corrected for free surface effects
考题
单选题Which of the following is the reason that the metacentric height is a valid measure of only the initial stabilit?（）.A
The metacenter does not remain in the same position for large angles of inclinationB
The center of gravity shifts due to inclinationC
The center of gravity shifts above the metacenter as the vessel is inclinedD
The mean draft will change as the vessel is inclined
考题
单选题On a vessel，multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)（）.A
transverse momentB
vertical momentC
righting momentD
inclining moment
考题
单选题A vertical shift of weight to a position above the vessel’s center of gravity will（）.A
increase reserve buoyancyB
decrease the righting momentsC
decrease KGD
increase KM
考题
单选题For a floating vessel，the center of flotation is the point in the waterplane（）.A
about which the vessel lists and trimsB
which coincides with the center of buoyancyC
which，in the absence of external forces，is always vertically aligned with the center of gravityD
which is shown in the hydrostatic tables as VCB
考题
单选题For a floating vessel,the center of the floating is the point in the waterpiane.（）.A
aboat which the vessel lists and trimsB
which coincides with the center of buoyancyC
which, in the absence of external forces, is always vertically aligned with the center of gravityD
which is shown in the hydrostatic tables as VCB
考题
单选题A flooded leg on a liftboat would adversely affect the vessel’s stability underway by（）.A
increasing the righting momentB
decreasing the vessel's displacementC
increasing the reserve buoyancyD
shifting the CG (center of gravity) off center
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单选题A flooded leg on a lift boat would adversely affect the vessel’s stability underway by（）.A
increasing the righting momentB
decreasing the vessel's displacementC
increasing the reserve buoyancyD
shifting the CG (center of gravity) off center
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