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
Mooring winch should be equipped with mechanical brakes which are 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：
Which one of the followings is not a right way to behave during mooring unmooring operation?—_______.A.Stay close to the towline at all timeB.Beware the bightsC.When operating the winch/windlass,ensure that yourself understand the controlsD.When the tug is being secured or let go, monitor the operation closely
On a Windows XP machine, which of the following settings should be configured to allow draggingof files without holding the mouse button?() A. ScrollLockB. StickyKeysC. MouseKeysD. ClickLock
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
Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is ______.A.entirely constant pressureB.entirely constant temperatureC.a combination of constant volume and constant pressureD.a combination of constant temperature and constant pressure
A liferaft which has inflated bottom-up on the water ______.A.should be righted by standing on the carbon dioxide cylinder，holding the righting straps and leaning backwardsB.should be righted by standing on the life line，holding the righting straps leaning backwardsC.will right itself when the canopy tube inflatesD.must be cleared of the buoyant equipment before it will right itself
Which device is designed to automatically hold the load if power should fail to an electric winch?A.Pneumatic brakeB.Electromagnetic brakeC.Hand brakeD.Motor controller
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
If two mooring lines are to be placed on the same bollard，which method is BEST?______.A.Place the eye from the forward line on the bollard and then place the eye from the second line directly over the firstB.It makes no difference how the lines are placedC.Place the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollardD.Place both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
In order to pay out or slack a mooring line which is under strain, you should ______.A.sluice the lineB.surge the lineC.stopper the lineD.slip the line
On a Windows XP machine, which of the following settings should be configured to allow draggingof files without holding the mouse button?（）A、ScrollLockB、StickyKeysC、MouseKeysD、ClickLock
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 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If two mooring lines are to be placed on the same bollard，which method is BEST?（）.APlace the eye from the forward line on the bollard and then place the eye from the second line directly over the firstBIt makes no difference how the lines are placedCPlace the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollardDPlace both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
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Which device is designed to automatically hold the load if power should fail to an electric winch?（）APneumatic brakeBElectromagnetic brakeCHand brakeDMotor controller
单选题Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is（）Aentirely constant pressureBentirely constant temperatureCa combination of constant volume and constant pressureDa combination of constant temperature and constant pressure