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Metacentric height is a measure of ______.
A.initial stability only
B.stability through all angles
C.maximum righting arm
D.All of the above
参考答案
更多 “ Metacentric height is a measure of ______.A.initial stability onlyB.stability through all anglesC.maximum righting armD.All of the above ” 相关考题
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Cross curves of stability show which of the following？A.The righting arms at various angles of inclination and displacementB.The metacentric height at large angles of heelC.The height of the center of buoyancy at various anglesD.The metacentric radius at various displacements
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A negative metacentric height ______.A.should always be immediately correctedB.will always cause a vessel to capsizeC.always results from off-center weightsD.All of the above are correct
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Reducing free surfaces has the effect of lowering the ______.A.uncorrected KGB.virtual height of the center of gravityC.metacenterD.metacentric height
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GM is a measure of ______.① The initial stability of a vessel.② The rightingness of the vessel.A.① onlyB.② onlyC.Both ① and ②D.Neither ① nor ②
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For a floating vessel, the result of subtracting KG from KM is the ______.A.height of the metacenterB.height of the righting armC.height of the center of buoyancyD.metacentric height
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If the result of loading a vessel is an increase in the height of the center of gravity, there will always be an increase in the ______.A.metacentric heightB.righting armC.righting momentD.vertical moments
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In small angle stability, the metacentric height ______.A.is found in the hydrostatic tables for a level vesselB.multiplied by the displacement yields the righting momentC.is always positiveD.is calculated by subtracting KG from KM
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In small angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the ______.A.center of gravityB.center of flotationC.metacenterD.metacentric height
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Increasing the number of slack liquid tanks has the effect of raising the ______.A.uncorrected KGB.maximum allowed KGC.virtual height of the center of gravityD.metacentric height
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单选题You must shift a weight from the upper tween deck to the lower hold. This shift will（）.A
make the vessel more tenderB
make the vessel stifferC
increase the rolling periodD
decrease the metacentric height
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单选题Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.A
this does not eliminate the risk of cargo shiftingB
this will increase the metacentric height of the shipC
this will decrease the gravity height of the shipD
this will reduce the rolling period of the ship
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单选题Structural stress on a ship can be reduced by（）.A
lessening the effect of environmental forcesB
even and symmetrical variable loadingC
local concentration of heavy consumablesD
increasing the metacentric height
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单选题In small-angle stability，when external forces exist，the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the（）.A
center of gravityB
center of flotationC
metacenterD
metacentric height
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单选题An aneroid barometer is an instrument（）.A
used to measure the speed of windB
in which the pressure of the air is measuredC
that tells which direction a storm is coming fromD
used to measure the height of waves
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单选题In snall angle stability, when external forces exist , the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the（）.A
center of gravityB
center of flotationC
metacenterD
metacentric height
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单选题（） is not the information necessary for the master to obtain guidance as to the stability of the ship.A
a curve of minimum operational metacentric height（GM）versus draughtB
instructions concerning the operation of cross-flooding arrangementsC
the signals or lights being exhibited or soundedD
all other data and aids which might be necessary to maintain stability after damage
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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
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单选题Which of the following is the reason that the metacentric height is a valid measure of only the initial stability?（）.A
The metacenter does not remain in the same position for large angles of inclinationB
The center of gravity shift 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 inclinded
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单选题A negative metacentric height（）.A
will always cause a vessel to capsizeB
should always be immediately correctedC
always result from off-center weightsD
All of the above are correct
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单选题If the metacentric height is small，a floating vessel will（）.A
be tenderB
have a quick and rapid motionC
be stiffD
yaw
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单选题If the metacentric height is large，a floating vessel will（）.A
be tenderB
have a slow and easy motionC
be stiffD
have a tendency to yaw
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单选题A floating ship with an initial negative metacentric height（）.A
will capsizeB
will incline furtherC
may lie at an angle of lollD
may be initially level
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单选题In small angle stability，the metacentric height（）.A
is found in the hydrostatic tables for a level vesselB
multiplied by the displacement yields the righting momentC
is always positiveD
is calculated by subtracting KG from KM
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单选题At all angles of inclination，the true measure of a vessel’s stability is the（）.A
metacentric heightB
displacementC
righting momentD
inclining moment
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