单选题The trim of a vessel is the ().Avalue of the mean draftBdegree of listCamount of rollDdifference in fore and aft drafts

单选题
The trim of a vessel is the ().
A

value of the mean draft

B

degree of list

C

amount of roll

D

difference in fore and aft drafts


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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

You are on an ice-reinforced vessel about to enter packice.You should ______.A.enter the pack on the windward side where there is a well defined ice edgeB.trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcementC.take maximum advantage of coastal leads caused by offshore windsD.look for areas of rotten ice and enter perpendicular to the ice edge

Prior to loading barges over the stern of a LASH vessel,the vessel should be trimmed in what manner ________.A.Two to four feet by the bowB.Slightly by the bowC.No trim should be permittedD.Slightly by the stern

A vessel has a strong wind on the port beam. This has the same affect on stability as ______.A.weight that is off-center to starboardB.increasing the draftC.reducing the freeboardD.increasing the trim

For a vessel 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

For a vessel with transverse inclination, an increase in GMT causes ______.A.list to stabilize at an angle of lollB.trim to decreaseC.list to increaseD.list to decrease

If a vessel takes a sudden severe list or trim from an unknown cause, you should FIRST____.A.determine the cause before taking countermeasuresB.assume the shift is due to off-center loadingC.counterflood on the side opposite the list or trimD.assume the cause is environmental forces

设a、b为字符型变量,与a-b等价的表达式是().A、trim(a)+b+space(len(a)-len(trim(a)))B、trim(a)=bC、a+bD、a*b

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?()AThe slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane areaBThe vessel can probably be saved if further flooding can be stoppedCThe vessel will continue to slowly list and/or trim due to the free surface effect and free communication effectDThe vessel will suddenly flop to the same or greater angle of list on the other side and may capsize

单选题The change in trim of a vessel may be found by().Adividing the trim moments by MT1Bsubtracting the LCF from the LCBClooking at the Hydrostatic Properties Table for the draft of the vesselDdividing longitudinal moments by the displacement

单选题The TPC curve,one of the hydrostatic curves in a vessel’s plans,gives the number of tons().Anecessary to change the angle of list 1°at a given draftBnecessary to change trim 1 cm at a given draftCpressure per square cm on the vessel's hull at a given draftDnecessary to further immerse the vessel 1 cm at a given draft

单选题Prior to loading barges over the stern of a LASH vessel,the vessel should be trimmed in what manner?().ATwo to four feet by the bowBSlightly by the bowCNo trim should be permittedDSlightly by the stern

单选题Which factor does NOT affect the required freeboard of a cargo vessel? ()ASeason of the yearBGeographic zone of operationCDensity of the waterDCondition of trim in normal operation

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?()AKB increases,increasing BM and therefore GMBKG increases due to the weight of the added water on deckCBM decreases from loss of water plane and greater volumeDThere is no effect on transverse stability

单选题The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is().Aright at the bowBone-third the length of the vessel from the bowCone-half the length of the vessel from the bowDtwo-thirds the length of the vessel from the bow

单选题A vessel has a strong wind on the port beam. This has the same affect on stability as().Aweight that is off-center to starboardBincreasing the draftCreducing the freeboardDincreasing the trim

单选题Master must ascertain that deck loads are stowed in such a manner as().Anot to affect the vessel's stability and trimBto affect the vessel's stabilityCto affect the vessel's trimDto affect the vessel's atability or trim

单选题How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?()AThis requires extensive calculation and is usually performed only by a naval architect not by a ship's officerBDetermine the point where aground and the draft at that point,then calculate it using the grounding formulaCUse the hydrostatic tables and enter with the mean draft before grounding and the mean draft after groundingDUse the inclining experiment formula and substitute the change of trim for the angle of list

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单选题A vessel loads edible oil in a deep tank through a manhole at the midlength of the tank. In order to fill the tank to maximum capacity,what trim should the vessel have?()ADown by the bowBDown by the sternCDown by either the bow or sternDIn level trim

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