Metacentric height is a measure of ______.A.initial stability onlyB.stability through all anglesC.maximum righting armD.All of the above
Metacentric height is a measure of ______.
A.initial stability only
B.stability through all angles
C.maximum righting arm
D.All of the above
相关考题：
Can you measure oil level? Which method is right, to measure ullage height or to measure oil depth?
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
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
Reducing free surfaces has the effect of lowering the ______.A.uncorrected KGB.virtual height of the center of gravityC.metacenterD.metacentric height
A check line is ______．A.A safety line attached to a man working over the sideB.Used to measure water depthC.Used to slow the headway of a bargeD.Used to measure the overhead height of a bridge
An aneroid barometer is an instrument ______.A.used to measure the speed of windB.in which the pressure of air is measuredC.that tells which direction a storm is coming fromD.used to measure the height of waves
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
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
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
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
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
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
单选题You must shift a weight from the upper tween deck to the lower hold. This shift will（）.Amake the vessel more tenderBmake the vessel stifferCincrease the rolling periodDdecrease the metacentric height
单选题Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.Athis does not eliminate the risk of cargo shiftingBthis will increase the metacentric height of the shipCthis will decrease the gravity height of the shipDthis will reduce the rolling period of the ship
单选题Structural stress on a ship can be reduced by（）.Alessening the effect of environmental forcesBeven and symmetrical variable loadingClocal concentration of heavy consumablesDincreasing the metacentric height
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（）.Acenter of gravityBcenter of flotationCmetacenterDmetacentric height
单选题An aneroid barometer is an instrument（）.Aused to measure the speed of windBin which the pressure of the air is measuredCthat tells which direction a storm is coming fromDused to measure the height of waves
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（）.Acenter of gravityBcenter of flotationCmetacenterDmetacentric height
单选题（） is not the information necessary for the master to obtain guidance as to the stability of the ship.Aa curve of minimum operational metacentric height（GM）versus draughtBinstructions concerning the operation of cross-flooding arrangementsCthe signals or lights being exhibited or soundedDall other data and aids which might be necessary to maintain stability after damage
单选题Which of the following is the reason that the metacentric height is a valid measure of only the initial stabilit?（）.AThe metacenter does not remain in the same position for large angles of inclinationBThe center of gravity shifts due to inclinationCThe center of gravity shifts above the metacenter as the vessel is inclinedDThe mean draft will change as the vessel is inclined
单选题Which of the following is the reason that the metacentric height is a valid measure of only the initial stability?（）.AThe metacenter does not remain in the same position for large angles of inclinationBThe center of gravity shift due to inclinationCThe center of gravity shifts above the metacenter as the vessel is inclinedDThe mean draft will change as the vessel is inclinded
单选题A negative metacentric height（）.Awill always cause a vessel to capsizeBshould always be immediately correctedCalways result from off-center weightsDAll of the above are correct
单选题If the metacentric height is small，a floating vessel will（）.Abe tenderBhave a quick and rapid motionCbe stiffDyaw
单选题If the metacentric height is large，a floating vessel will（）.Abe tenderBhave a slow and easy motionCbe stiffDhave a tendency to yaw
单选题A floating ship with an initial negative metacentric height（）.Awill capsizeBwill incline furtherCmay lie at an angle of lollDmay be initially level
单选题In small angle stability，the metacentric height（）.Ais found in the hydrostatic tables for a level vesselBmultiplied by the displacement yields the righting momentCis always positiveDis calculated by subtracting KG from KM
单选题At all angles of inclination，the true measure of a vessel’s stability is the（）.Ametacentric heightBdisplacementCrighting momentDinclining moment