网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
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
参考答案
参考解析
解析：
暂无解析
更多 “单选题The center of buoyancy and the metacenter are in the line of action of the buoyant force（）.A only when there is positive stabilityB only when there is negative stabilityC only when there is neutral stabilityD at all times” 相关考题
考题
Jettisoning weight from topside ______.A.returns the vessel to an even keelB.reduces free surface effectC.lowers the center of gravityD.raises the center of buoyancy
考题
A floating vessel will behave as if all of its weight is acting downward through the ______.A.center of gravityB.center of buoyancyC.center of floationD.Metacenter
考题
An unstable upright equilibrium position on a vessel means that the metacenter is ______.A.lower than the center of gravityB.at the same height as the center of gravityC.higher than the baselineD.on the longitudinal centerline
考题
At all angles of inclination, the metacenter is ______.A.vertically above the center of buoyancyB.vertically above the center of gravityC.at the intersection of the upright vertical centerline and the line of action of the buoyant forceD.at the geometric center of the underwater volume
考题
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 stabilityB.only when there is negative stabilityC.only when there is neutral stabilityD.at all times
考题
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
考题
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
考题
单选题The difference between the height of the metacenter and the height of the center of gravity is known as the（）.A
metacentric heightB
height of the righting armC
fore and aft perpendicularD
height of the center of buoyancy
考题
单选题Stable equilibrium for a vessel means that the metacenter is（）.A
at a lower level than the baselineB
on the longitudinal centerlineC
higher than the center of gravityD
at amidships
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In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the（）.A
center of gravityB
amidships stationC
center of flotationD
geometric center of the waterplane area
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
考题
单选题The mean draft of a ship is the draft（）.A
midway between the forward and aft draft marksB
at the center of flotationC
at the load lineD
at the center of buoyancy
考题
单选题If a vessel list to port,the center of buoyancy will（）.A
move to portB
move to starboardC
move directly downD
stay in the position
考题
单选题The center of buoyancy is located at the（）.A
geometric center of the waterplane areaB
intersection of the vertical centerline and line of action of the buoyant forceC
center of gravity of the vessel corrected for free surface effectsD
geometric center of the displaced volume
考题
单选题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
考题
单选题Stability is determined by the relationship of the center of gravity and the（）.A
water depthB
keelC
center of flotationD
center of buoyancy
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An unstable upright equilibrium position on a vessel means that the metacenter is（）.A
lower than the center of gravityB
at the same height as the center of gravityC
higher than the baselineD
on the longitudinal centerline
考题
单选题Jettisoning weight from topside（）.A
return the vesselto an even keelB
reduces free surface effectC
lowers the center of gravityD
raises the center of buoyancy
考题
单选题At all angles of inclination, the metacenter is（）.A
vertically above the center of buoyancyB
vertically above the center of gravityC
at the intersection of the upright vertical centerline and the line of action of the buoyant forceD
at the geometric center of the underwater volume
考题
单选题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 stabilityB
only when there is negative stabilityC
only when there is neutral stabilityD
at all times
考题
单选题A neutral equilibrium position for a vessel means that the metacenter is（）.A
lower than the keelB
at the same height as the center of gravityC
exactly at midshipsD
at the center of the waterplane area
考题
单选题When cargo is shifted from the main deck into the lower hold of a vessel,（）.A
The metacenter will move downwardB
The GM will increaseC
The center of buoyancy will move upwardD
The list of the vesel will become great
考题
单选题The important initial stability parameter，GM，is the（）.A
metacentric heightB
height of the metacenter above the keelC
height of the center of buoyancy above the keelD
height of the center of gravity above the keel
热门标签
最新试卷
