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 capable of holding ______.
A.half the breaking strength of the mooring line
B.the full breaking strength of the mooring line
C.the maximum expected tension of the mooring line
D.50% over the working tension of the mooring line
相关考题：
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
An anchor 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
Given the same water depth and line tension, the holding power of a 19 pound / foot wire rope mooring system in comparison to the holding power of a 90 pound / foot chain mooring system will be ______.A.weakerB.equalC.greaterD.Indeterminable
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 mechanical davit is designed to automatically（）.Aposition the boat at the embarkation stationBlift the boat off the inboard chocksCenergize the winch for the fallsDset the brake on the winch
单选题Most totally enclosed lifeboats are equipped with which of the following? （）ATanks for the storage of drinking waterBBallast tanks to prevent the boat from capsizingCA hydraulic start diesel engineDAuxiliary mechanical propulsion (Fleming gear)
单选题After repair, the voyage trial of the M-E should be done （）Aafter the mooring trial has passedBbefore the mooring trialCunder the surveyors supervisionDafter repair
单选题A “stopper” is（）.Aa short length of line used for temporarily holding another lineBa snatch block for handling a topping liftCan engine order telegraphDthe brake on a cargo winch
单选题If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should （）.Aadd fluid that is the same color as the fluid in the reservoirBadd turbine oil because it is always a good substituteCadd any oil that has the same viscosity as the hydraulic fluidDcheck the winch manufacturers instruction book
单选题In the constant-tension mooring, the mooring lines holding the ship to the pier will maintain a constant tension even with changes in tide or ship’s draft, （）.Awithout the necessity of manually adjusting the linesBwithout the necessity of automatically adjusting the linesCwith the necessity of manually adjusting the linesDwith the un-necessity of automatically adjusting the lines
单选题In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）AConstant tension mooring winch systemBHatch cover systemCWatertight door systemDInternal combustion engine hydraulic starter system
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 crane jib is raised and lowered by means of （）Aa mooring winchBa hoisting winchCa slewing winchDa luffing winch
单选题The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum and should slip only when （）.Aexcessive loads are placed on the winchBminimum pull is being exerted by the winchCautomatic operation of the winch is desiredDwire is being retrieved at the maximum rate
单选题The duty of a deck winch is to lift and lower a load by means of a fixed rope on （）.Aa warp endBa mooring winchCa worm gearDa barrel
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When carrying out mooring trial, if the M√Ecan’t start normally, you should （）Atake a further inspection in the voyageBcheck and repair, then retrialCdo as the surveyor’s requirementDretrial
单选题Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially （）.AincreaseBdecreaseCfluctuateDremain constant
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 holding power of an anchor is the（）.Amaximum sustained vertical load an anchor will resist before draggingBmaximum sustained horizontal load an anchor will resist before draggingCmaximum sustained vertical load an anchor will resist before the mooring line breaksDmaximum sustained horizontal load an anchor will resist before the mooring line breaks
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When retrieving the survival craft，the winch operator should stop the winch and check（）.Athat all personnel are seated in the craftBthat the cable has not jumped any grooves on the drumCwhich way the wind is blowingDthe hydraulic fluid level before lifting
单选题Given the same water depth and line tension，the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be（）.AweakerBequalCgreaterDindeterminable
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To develop maximum anchor holding power，the optimum angle between the anchor’s shank and the mooring lines is（）.A0 degreesB10 degreesC20 degreesD30 degrees