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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 winch
B
minimum pull is being exerted by the winch
C
automatic operation of the winch is desired
D
wire is being retrieved at the maximum rate
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更多 “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” 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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When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be______.A.disengaging the clutch firstly, then stopping the main engineB.stopping the main engine firstly, then disengaging the clutchC.stopping the cooling water pump firstly, then stopping the main engineD.stopping the main engine and disengaging the clutch at the same time
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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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During the valve overlap period, the exhaust pressure of a turbocharged four-stroke/cycle diesel engine must be less than the intake manifold pressure to ensure ______.A.effective cylinder scavenging and coolingB.constant pressure from the turbochargersC.cooler operation of the exhaust systemD.effective constant pressure for turbocharger operation
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
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
起货机出故障时，水手要去叫电工来修理。（）A、When the windlass is in trouble, the sailor must go and call the electrician to repair it.B、When the derrick is in trouble, the sailor must go and call the electrician to repair it.C、When the winch is in trouble, the sailor must go and call the electrician to repair it.D、When the winch is in trouble, the sailor must go and call the carpenter to repair it.
考题
单选题A white buoy with a blue band is（）.A
an isolated danger markB
a hydrographic data collection buoyC
a mooring buoyD
marking a restricted area
考题
单选题To prevent the riser system from buckling under its own weight，upward tension is provided by the（）.A
riser stabilizersB
guideline tensioning systemC
riser tensioning systemD
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考题
单选题（）is put into use in the late years to maintain a preset tension in a mooring line after a ship has been tied up at a pier.A
The large-tension mooringB
The small-tension mooringC
The variable-tension mooringD
The constant-tension mooring
考题
单选题（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.A
The winch motorB
The band brakeC
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考题
单选题We must（）the mooring lines when the tide rises and falls.A
slack awayB
take onC
take inD
adjust
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 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, （）.A
without the necessity of manually adjusting the linesB
without the necessity of automatically adjusting the linesC
with the necessity of manually adjusting the linesD
with the un-necessity of automatically adjusting the lines
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
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考题
单选题A mooring system that results in a spread system without anchor buoys is called a（）.A
permanent chasing systemB
wire rope mooring systemC
shepherd's crook mooring systemD
spring buoy mooring 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If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.A
when the line pull reaches the rated winch capacityB
after the line pull exceeds the rated winch capacityC
after a short build-up of torqueD
immediately
考题
单选题When the winch is in trouble, the sailor must call the （）(电工) to repair it.A
carpenterB
ratingC
electricianD
bosun
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Winch gears must be maintained in proper alignment to prevent （）.A
overheating of the lube oilB
over-speeding of the motorC
wear on the braking systemD
damage to the teeth
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The soot blowers are operating in the oil fuel boiler the air/fuel ratio must （） throughout the action, and blowers greased after use.A
be increasedB
be decreasedC
remain constantD
either be increased or remain constant
考题
单选题When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be（）A
disengaging the clutch firstly, then stopping the main engineB
stopping the main engine firstly, then disengaging the clutchC
stopping the cooling water pump firstly, then stopping the main engineD
stopping the main engine and disengaging the clutch at the same time
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