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When a wind force causes a floating ship to heel to a static angle，the ______．
A.Centers of buoyancy and gravity are in the same vertical line
B.Righting moment equals the wind-heeling moment
C.Downflooding point is below water
D.Deck-edge immersion occurs
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更多 “ When a wind force causes a floating ship to heel to a static angle，the ______．A.Centers of buoyancy and gravity are in the same vertical lineB.Righting moment equals the wind-heeling momentC.Downflooding point is below waterD.Deck-edge immersion occurs ” 相关考题
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
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The numeral in the center of a wind rose circle on a pilot chart indicates the ______.A.total number of observationsB.average wind force on the Beaufort scaleC.average wind force in knotsD.percentage of calms
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Among the possible causes of unexpected constant inclination of the floating ship is ______．A.Consumption of on board liquidsB.Miscalculation of loadsC.Liquid transfer through open valvesD.Flooding due to hull damage
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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
有时风大流急，船舶靠码头时必须掉头顶流。（）A、A ship has to turn to stem the tide because the wind is strong when she is getting alongside a wharf.B、Sometimes the wind is strong and the current is rough, so a ship has to turn to stem the tide when she is getting alongside a wharf.C、The wind is big, a ship must get alongside a wharf so she has to turn to stem the tide.D、A ship has to turn to stem the tide so she can get alongside a wharf.
考题
单选题The angle to which a floating ship，with a negative initial metacentric height，lies while at rest in still water is the angle of（）.A
trimB
yawC
heelD
loll
考题
单选题When taking soundings on a floating ship，the tape should be lowered and brought back quickly to（）.A
reduce the time the sounding tube is openB
avoid creating a sparkC
lessen the effect of roll or pitch on the readingD
lessen the effect of heave on the reading
考题
单选题The angle of loll is a stability term which applies to a floating ship with（）.A
off-center loadingB
stiff characteristicsC
excessive pitch or rollD
negative initial stability
考题
单选题For a ship with longitudinal inclination，an increase in GML causes（）.A
list to stabilize at an angle of lollB
trim to stabilize at an angle of lollC
trim to increaseD
trim to decrease
考题
单选题When will the float-free emergency position indicating radio beacon be activated after abandoning ship?（）A
Immediately after floating freeB
After about one hour when the salt water activates the batteryC
Only when keyed by the radar of another vesselD
Only when daylight activates the photovoltaic cell
考题
单选题When the ship causes oil pollution to the port, she will be（）.A
finedB
leviedC
paidD
deducted
考题
单选题The apparent wind can be zero when the true wind is from（）.A
ahead and equal to the ship's speedB
astern and equal to the ship's speedC
ahead and equal to twice the ship's speedD
astern and equal to twice the ship's speed
考题
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
考题
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
考题
单选题In rough weather，when a ship is able to maneuver，it is best to launch a lifeboat（）.A
on the lee sideB
on the windward sideC
with the wind dead aheadD
with the wind from astern
考题
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
考题
单选题When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.A
GaleB
StormC
HurricaneD
Typhoon
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When evacuating a seaman by helicopter lift，which course should the ship take?（）A
Downwind so that the apparent wind is close to nilB
A course that will keep a free flow of air，clear of smoke，over the hoist areaC
A course that will have the hoist area in the lee of the superstructureD
With the wind dead ahead because the helicopter is more maneuverable when going into the wind
考题
单选题The numeral in the center of a wind rose circle on a pilot chart indicates the （）.A
total number of observationsB
average wind force on the Beaufort scaleC
average wind force in knotsD
percentage of calms
考题
单选题When a wind force causes a floating ship to heel to a static angle，the（）.A
centers of buoyancy and gravity are in the same vertical lineB
righting moment equals the wind-heeling momentC
downflooding point is below waterD
deck-edge immersion occurs
考题
单选题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
考题
单选题The centre of lateral resistance is（）.A
the center of the hydrodynamic forces acting on the underwater hull to resist the effect of the windB
the point of influence of wind on the shipC
the pivot pointD
the point on the ship's above-water structure upon which the whole force of the wind can be considered an act
考题
单选题When referring to dry bulk cargoes，the term “flow state”（）.A
designates the state of a commodity when the ship is heeled past the angle of reposeB
relates to the suitability of loading a cargo by flowing down inclined chutesC
refers to the saturation of a dry bulk product with water to the point where it acts as a liquidD
relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°
考题
单选题The static stability curve for a given vessel peaks at 34°. For this ship，the danger angle for a permanent list would be about（）.A
8.5°B
17°C
34°D
51°
考题
单选题有时风大流急，船舶靠码头时必须掉头顶流。（）A
A ship has to turn to stem the tide because the wind is strong when she is getting alongside a wharf.B
Sometimes the wind is strong and the current is rough, so a ship has to turn to stem the tide when she is getting alongside a wharf.C
The wind is big, a ship must get alongside a wharf so she has to turn to stem the tide.D
A ship has to turn to stem the tide so she can get alongside a wharf.
考题
单选题When will the float-free emergency position indicating radiobeacon be activated after abandoning ship? （）A
Immediately after floating freeB
After about one hour when the salt water activates the batteryC
Only when keyed by the radar of another vesselD
Only when daylight activates the photovoltaic cell
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