A vessel is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is ______.A.positiveB.negativeC.zeroD.vertical
A vessel is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is ______.
A.positive
B.negative
C.zero
D.vertical
相关考题：
In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to ().A.heel until the angle of loll is reachedB.list until the center of buoyancy is aligned vertically with the center of gravityC.trim to the side opposite TCG until all moments are equalD.decrease draft at the center of flotation
A vessel is "listed" when it is ______.A.down by the headB.down by the sternC.inclined due to off-center weightD.inclined due to wind
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
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
For a vessel inclined by the wind, multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the ______.A.righting momentB.longitudinal momentC.transverse momentD.vertical moment
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, 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
In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with the ______.A.center of gravityB.metacenterC.center of flotationD.Keel
单选题A ship is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is（）.ApositiveBnegativeCzeroDvertical
单选题At an angle of loll，the righting arm (GZ) is（）.AmaximumBnegativeCpositive，but reflexiveDzero
单选题For a vessel inclined by the wind，multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the（）.Arighting momentBvertical momentClongitudinal momentDtransverse moment
单选题In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the（）.Acenter of gravityBamidships stationCcenter of flotationDgeometric center of the waterplane area
单选题The center of flotation of a vessel is the point in the waterplane（）.Aabout which the vessel lists and trimsBwhich coincides with the center of buoyancyCwhich，in the absence of external forces，is always vertically aligned with the center of gravityDwhich is shown in the hydrostatic tables as VCB
单选题When a vessel is inclined by an external force，the（）.Ashape of the vessel's underwater hull remains the sameBvessel's center of gravity shifts to the center of the vessel's underwater hullCvessel's center of buoyancy shifts to the center of the vessel's underwater hullDvessel's mean draft increases
单选题The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel? （）AIt forces the bow away from the bankBIt forces the stern away from the bankCIt forces the entire vessel away from the bankDIt heels the vessel toward the bank
单选题The angle of maximum righting arm corresponds approximatelyto the angle of（）.Adeck edge immersionBthe load lineCdownfloodingDloll
单选题A vessel is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is（）.ApositiveBnegativeCzeroDvertical
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In the presence of external forces，the center of buoyancy of an inclined vessel is vertically aligned with the（）.Acenter of gravityBmetacenterCcenter of flotationDkeel
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In the absence of external forces, the center of gravity of a floating vessel is located directly above the（）.AmetacenterBamidshipsCcenter of floatationDgeometric center of the displaced volume
单选题The tendency of a vessel to return to its original trim after being inclined by an external force is（）.AequilibriumBbuoyancyCtransverse stabilityDlongitudinal stability
单选题An inclined semisubmersible with a very short rolling period about a constant angle of list is likely to have（）.Aan off-center TCGBan LCG greater than level vessel LCBCa negative GMDexcessive free surfaces
单选题In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to（）.Aheel until the angle of loll is reachedBlist until the center of buoyancy is aligned vertically with the center of gravityCtrim to the side opposite TCG until all moments are equalDdecrease draft at the center of flotation
单选题For a floating vessel，the center of flotation is the point in the waterplane（）.Aabout which the vessel lists and trimsBwhich coincides with the center of buoyancyCwhich，in the absence of external forces，is always vertically aligned with the center of gravityDwhich is shown in the hydrostatic tables as VCB
单选题For a floating vessel,the center of the floating is the point in the waterpiane.（）.Aaboat which the vessel lists and trimsBwhich coincides with the center of buoyancyCwhich, in the absence of external forces, is always vertically aligned with the center of gravityDwhich is shown in the hydrostatic tables as VCB
单选题If the cause of a sudden severe list is negative initial stability，counterflooding into empty tanks may（）.Aincrease the righting momentBcause an increase in the righting armCbring the vessel to an upright equilibrium positionDcause the vessel to flop to a greater angle