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As the displacement of a vessel increases,. the detrimental effect of free surface ______.
A.increases
B.decreases
C.remains the same
D.may increase or decrease depending on the fineness of the vessel’s form
参考答案
更多 “ As the displacement of a vessel increases,. the detrimental effect of free surface ______.A.increasesB.decreasesC.remains the sameD.may increase or decrease depending on the fineness of the vessel’s form ” 相关考题
考题
Deadweight is ________ ．A.the tonnes of the displacement of a vessel in water of a specific gravity of 1．025 at summer load water lineB.the difference in tonnes between the displacement in salt water at summer load waterline and the light weight of the vesselC.the cargoes in tonnes that can be loaded in a vessel at summer load water lineD.the bale capacity in cubic meters of a vessel
考题
An upright vessel has negative GM．GM becomes positive at the angle of loll because the ______．A.Free surface effects are reduced due to pocketingB.KG is reduced as the vessel seeks the angle of lollC.Effective beam is increased causing BM to increaseD.Underwater volume of the hull is increased
考题
The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel's displacement into the ______．A.Transverse free surface correction for the vesselB.Sum of the vertical moments of the vesselC.Sum of the longitudinal free surface moments of the vesselD.Longitudinal centerline of the vessel
考题
Which statement about the free surface effect is TRUE ________．A.It increases in direct proportion to the length of the tank times the breadth squaredB.It decreases at increased angles of heel due to pocketing when a tank is 90% fullC.It decreases in direct proportion to increasing specific gravity of the liquid in the tankD.In practice，the correction is considered to be a virtual reduction of KG
考题
The free surface corrections depend upon the dimensions of the surface of the free liquids and the ______．A.volume of liquid in the tankB.displacement of the vesselC.location of the tank in the vesselD.height of the center of gravity of the vessel
考题
The free surface effects of a partially full liquid tank decrease with increased ______．A.Density of the liquidB.Placement of the tank above the keelC.Displacement volume of the shipD.Size of the surface area in the tank
考题
When displacement increases，the free surface corrections for slack tanks ______．A.increaseB.decreaseC.are directly proportionalD.remain unchanged
考题
单选题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
单选题Your vessel was damaged and initially assumed a significant list and trim; however，further increase has been slow. Based on this data，what should you expect?（）A
The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane areaB
The vessel can probably be saved if further flooding can be stoppedC
The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effectD
The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize
考题
单选题Aboard a vessel，multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s（）.A
TCGB
transverse momentC
righting momentD
transverse free surface moment
考题
单选题Your vessel is damaged with no list，but down by the stern. There is progressive flooding and trim by the stern is increasing. What is the effect on transverse stability after the deck edge at the stern is submerged?（）A
KB increases，increasing BM and therefore GMB
KG increases due to the weight of the added water on deckC
BM decreases from loss of water plane and greater volumeD
There is no effect on transverse stability
考题
单选题Deadweight，which is the cargo carrying capacity of a vessel in tons，is determined by（）.A
Loaded displacement minus light displacementB
Gross tonnage minus net tonnageC
Loaded displacement minus net tonnageD
Light displacement minus the weight of the vessel
考题
单选题To calculate the free surface correction，it is necessary to divide the free-surface moments by the（）.A
total weight of liquid loadsB
total displacementC
lightweightD
deadweight
考题
单选题The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel’s displacement into the（）.A
transverse free surface correction for the vesselB
sum of the vertical moments of the vesselC
sum of the longitudinal free surface moments of the vesselD
longitudinal centerline of the vessel
考题
单选题The effects of free surface on a vessel’s initial stability do NOT depend upon the（）.A
volume of displacement of the vesselB
dimensions of the surface of the liquidC
amount of liquid in slack tanksD
specific gravity of the liquid in the tank
考题
单选题Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in th eload’s（）.A
TCGB
transverse momentC
righting momentD
transverse free surface moment
考题
单选题As the displacement of a vessel increases, the detrimental effect of free surface（）.A
increasesB
decreasesC
remains the sameD
may increase or decrease depending on the fineness of the vessel's form
考题
单选题Topside icing decreases vessel stability because it is usually off-center and（）.A
increases displacementB
increases the height of the center of gravityC
increases draftD
reduces the pocketing of free surface
考题
单选题As defined in the Rules，the term vessel includes（）.A
seaplanesB
non-displacement craftC
bargesD
All of the above
考题
单选题A VESSEL，OTHER THAN A RESCUE UNIT，DESIGNATED TO CO-ORDINATE SURFACE SEARCH AND RESCUE OPERATION WITHIN A SPECIFIED AREA is known as（）.A
Salving vesselB
Co-ordinator surface searchC
MERSARD
The vessel being salved
考题
单选题The center of the underwater volume of a floating vessel is the（）.A
center of buoyancyB
center of flotationC
uncorrected height of the center of gravity of the vesselD
center of gravity of the vessel corrected for free surface effects
考题
单选题Topside icing that blocks freeing ports and scuppers（）.A
is usually below the center of gravity and has little effecton stabilityB
will cause water on deck to pocket and increase stabilityC
may decrease stability by increasing free surface effect due to water on deckD
increases the effective freeboard and increases thewind-heel affect
考题
单选题Many vessels are provided with flume tanks，which also have a dump tank located under the flume tanks. In the event the ship is damaged，you could dump the flume tanks into the dump tank which would（）.A
reduce the free surface effect and raise the KGB
not have any effect on free surface and raise the KGC
reduce the free surface effect and lower the KGD
not have any effect on free surface and lower the KG
考题
单选题What is the principal danger from the liquid in a half full tank onboard a vessel?（）A
Corrosion from the shifting liquidB
Rupturing of bulkheads from the shifting liquidC
Loss of stability from free surface effectD
Holing of the tank bottom from the weight of the shifting liquid
考题
单选题The effect of free surface on initial stability depends upon（）.A
the amount of liquid in the compartmentB
the dimensions of the liquid surface and the vessel's displacementC
only the length of the compartmentD
the vertical position of the liquid in the vessel
考题
单选题The effects of free surface on initial stability depend upon the dimensions of the surface of the free liquids and the（）.A
volume of liquid in the tankB
volume of displacement of the vesselC
location of the tank in the vesselD
height of the center of gravity of the vessel
考题
单选题When a vessel navigates in an area with a small underkeel clearance but with adequate space to take avoiding action she（）.A
should not be regarded as a vessel constrained by her draughtB
should be regarded as a vessel constrained by her draughtC
shall be regarded as a vessel restricted in her ability to maneuverD
should be regarded as a non-displacement vessel
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