During a storm，the chance of fatigue failure of a mooring line will increase as ______.A.vessel motions increaseB.mooring tensions decreaseC.KG increasesD.KG decreases
During a storm，the chance of fatigue failure of a mooring line will increase as ______.
A.vessel motions increase
B.mooring tensions decrease
C.KG increases
D.KG decreases
相关考题：
Mooring winch should be equipped with mechanical brakes capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the working tension of the mooring line
Mooring winch should be equipped with mechanical brakes which are capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the working tension of the mooring line
A storm is forecast for the area where your vessel is moored. For its safety you should put ______.A.more slack in the mooring linesB.a strain on the mooring linesC.chafing gear on the mooring linesD.grease on the mooring lines
Where do fatigue failures of wire rope mooring lines usually occur ________．A.In the middle part of the line lengthB.Near the socketed end fitting adjacent to the anchorC.At the point where the line touches the bottomD.At the place the anchor buoy is attached to the line
The indication of a slipping anchor is a（n）______．A.Decrease in mooring line lengthB.Increase in the opposite amperageC.Increase in the opposite line tensionD.Decrease in mooring line tension and amperage
In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to ______.A.increase fatigue life of the systemB.reduce the time to retrieve the lineC.increase the holding powerD.reduce the catenary
单选题A mooring line leading at nearly right angles to the keel is a（）.Abow lineBbreast lineCspring lineDstern line
单选题During storm conditions on a vessel，the mooring tensions should be adjusted so that（）.Aall mooring lines have a different tensionBthe leeward lines have higher tension than the windward linesCthe maximum tension of the most heavily loaded line does not exceed the safe working loadDall horizontal tension forces on the windward lines are no greater than the vertical tension forces
单选题In order to pay out or slack a mooring line which is under strain，you should（）.Asluice the lineBsurge the lineCstopper the lineDslip the line
单选题In a storm，the windward lines of a ship’s mooring system provide（）.Aa positive righting momentBan increase in KMCa negative restoring forceDa positive restoring force
单选题A mooring line that prevents a vessel from moving sideways away from the dock is a（）.Abow lineBbreast lineCstern lineDspring line
单选题Two mooring lines may be placed on the same bollard and either one cast off first if（）.Athe eye of the second line is dippedBthe mooring lines are doubledCthe bollard has two hornsDone of the lines is a breast line
单选题What is likely to occur when you are surging synthetic mooring lines on the gypsyhead during mooring operations?（）AThe lines may jam and then jump off the gypsyheadBIf there is sudden strain on the line，the man tending the line may be pulled into the gypsyheadCThe lines' surging may cause the vessel to surgeDThe heat generated may cause the lines to temporarily fuse to the gypsyhead
单选题During a storm，the chance of fatigue failure of a mooring line will increase as（）.Avessel motions increaseBmooring tensions decreaseCKG increasesDKG decreases
单选题In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.Aincrease fatigue life of the systemBreduce the time to retrieve the lineCincrease the holding powerDreduce the catenary
单选题The main reason a long towline is used during an oceantow is that（）.Aa margin of safety is provided should the line partBthe towline will wear more evenlyCthere will be less stress on the towlineDa slight increase in speed will be realized
单选题An anchor winch should be equipped with mechanical brakes capable of holding（）.Ahalf the breaking strength of the mooring lineBthe full breaking strength of the mooring lineCthe maximum expected tension of the mooring lineD50% over the working tension of the mooring line
单选题What is the holding power ratio of an anchor? （）AMaximum mooring line tension divided by the anchor's weight in airBAnchor's weight in air divided by the maximum mooring line tensionCPreloading tension divided by the anchor's weight in airDOperating tension divided by the anchor's weight in air
单选题The indication of a slipping anchor is a(n)（）.Adecrease in mooring line lengthBincrease in the opposite amperageCincrease in the opposite line tensionDdecrease in mooring line tension and amperage
单选题A storm is forecast for the area where your vessel is moored. For its safety you should put （）.Amore slack in the mooring linesBa strain on the mooring linesCchafing gear on the mooring linesDgrease on the mooring lines
单选题A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）ABackup power generatorBUninterruptable power supplyCPower line conditionersDSurge protectors
单选题A mooring line that checks forward motion of a vessel at a pier is a（）.Abow lineBforward bow lineCstern lineDstern breast line
单选题Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）APut one line at the low point and one at the high point of the bollard so they don't touchBTake the eye of the second line up through the eye of the first line before putting the second line on the bollardCNever put two mooring lines on the same bollardDThe mooring line forward should be put on the bollard first
单选题A “spring line” is（）.Aany wire rope used for mooringBa fire-warpCa mooring line running diagonally to the keelDa mooring line perpendicular to the keel
单选题What is normally used to pass a mooring line to a dock?（）ADistance lineBGantlineCHeaving lineDTag line
单选题Which mooring line has the least elasticity?（）ADacronBNylonCEsterleneDPolypropylene