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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
参考答案
更多 “ 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 ” 相关考题
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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
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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
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
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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
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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
考题
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
考题
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 ______.A.weakerB.equalC.greaterD.Indeterminable
考题
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
考题
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
考题
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
考题
单选题A mechanical davit is designed to automatically（）.A
position the boat at the embarkation stationB
lift the boat off the inboard chocksC
energize the winch for the fallsD
set the brake on the winch
考题
单选题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
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单选题Most totally enclosed lifeboats are equipped with which of the following? （）A
Tanks for the storage of drinking waterB
Ballast tanks to prevent the boat from capsizingC
A hydraulic start diesel engineD
Auxiliary mechanical propulsion (Fleming gear)
考题
单选题A “stopper” is（）.A
a short length of line used for temporarily holding another lineB
a snatch block for handling a topping liftC
an engine order telegraphD
the brake on a cargo winch
考题
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 （）.A
add fluid that is the same color as the fluid in the reservoirB
add turbine oil because it is always a good substituteC
add any oil that has the same viscosity as the hydraulic fluidD
check the winch manufacturers instruction book
考题
单选题In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）A
Constant tension mooring winch systemB
Hatch cover systemC
Watertight door systemD
Internal combustion engine hydraulic starter system
考题
单选题The crane jib is raised and lowered by means of （）A
a mooring winchB
a hoisting winchC
a slewing winchD
a luffing winch
考题
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 （）.A
excessive loads are placed on the winchB
minimum pull is being exerted by the winchC
automatic operation of the winch is desiredD
wire is being retrieved at the maximum rate
考题
单选题The duty of a deck winch is to lift and lower a load by means of a fixed rope on （）.A
a warp endB
a mooring winchC
a worm gearD
a barrel
考题
单选题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
考题
单选题Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially （）.A
increaseB
decreaseC
fluctuateD
remain constant
考题
单选题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
考题
单选题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
考题
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（）.A
weakerB
equalC
greaterD
indeterminable
考题
单选题Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）A
Put one line at the low point and one at the high point of the bollard so they don't touchB
Take the eye of the second line up through the eye of the first line before putting the second line on the bollardC
Never put two mooring lines on the same bollardD
The mooring line forward should be put on the bollard first
考题
单选题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
考题
单选题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
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