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单选题
When discharging bilge water, which criteria must be observed?（）
A
The requirement for the oil content of bilge water discharged is 15 ppm
B
No discharge in sensitive waters
C
Any discharge in sensitive waters
D
International, national or local requirements have to be observed
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If you must enter water on which there is an oil fire, you should ______.A.protect your life preserver by holding it above your headB.enter the water on the windward side of the vesselC.keep both hands in front of your face to break the water surface when diving head firstD.wear very light clothing
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When replacing a power supply， what MUST the technician observe？（）A、voltageB、currentC、wattageD、resistance
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单选题During loading and discharging operations，in addition to when the cargo tanks have been properly filled，each inert gas system must be capable of maintaining a minimum gas pressure of（）.A
150 millimeters of water pressureB
125 millimeters of water pressureC
100 millimeters of water pressureD
75 millimeters of water pressure
考题
单选题When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.A
to decrease scale formationB
for better cooling effectC
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单选题Which of the equipment listed is most effective in processing bilge slops for overboard discharge?（）A
100PPM oily water separatorB
Assembling the lube oil purifier as a separator and aligning bilge overboardC
A 15PPM oily water separatorD
A magnetic duplex strainer
考题
单选题Before loading bulk grain，bilge wells must be covered to（）.A
add strength to the bilge well strainerB
permit rapid flow of water to the bilge wellsC
prevent cargo sifting into the bilge wellsD
prevent oil，water，or other liquid from reaching the cargo
考题
单选题Which of the following operations aboard a tanker must be recorded in the Oil Record Book （）A
Any internal transfer of oil cargo during a voyageB
The discharge overboard in port or at sea of any bilge water accumulated in machinery spacesC
The loading or unloading of any or all oil cargoD
All of the above
考题
单选题Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）A
Water discharging from the water outlet of the lube oil purifierB
Fuel oil discharging from the water outlet of the lube oil purifierC
Lube oil discharging from the water outlet of the lube oil purifierD
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考题
单选题During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? （）A
The quantity of oil residues generatedB
The capacity of sludge and bilge water holding tankC
The capacity of the oily water separatorD
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考题
单选题The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than （） of the total bilge pumping capacity.A
one-thirdB
two-thirdsC
one-fourthD
two-fourths
考题
单选题When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.A
to cut down the amount of cooling water neededB
to prevent an excess amount of cooling water from being discharged to the bilgesC
to supply hot water to the evaporator for more economical operationD
None of the above is tree
考题
单选题Which one of the following is not generally recognized as one constitute of bilge water?（）A
Oil leaking from tanks inside engine roomB
Engine room cleaning waterC
Water leaking from the separator sludge tankD
Sewage
考题
单选题An oil water monitor is required in order to measure （）.A
the oil content in waterB
the water content in fuel oilC
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the oil level in bilge well
考题
单选题Which of the following statements is correct concerning diesel engine cooling water systems?（）A
Each engine must have its own engine driven cooling water pump capable of providing cooling for all ranges of operationB
propulsion engines with bores exceeding 200 mm are to be fitted with a means to display the cooling water temperature of each cylinderC
At least two independent sea suctions are to be provided for supplying water to the engine jackets or to the heat exchangersD
Suitable strain are to be fitted between the circulating pumps and heat exchangers when sea water is used for direct cooling
考题
单选题When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）A
FoamB
Solid stream water nozzleC
All-purpose nozzleD
Carbon dioxide
考题
单选题Which of the following methods might favor oil emulsion in bilge water?（）A
Raising temperatureB
less use of surfactantC
more use of solventD
polishing device fouling prevention
考题
单选题Which of the following operations must be entered on the Oil Record Book Part Ⅰ? （） Ⅰ.Routine discharge at sea of bilge water containing oil from the machinery spaces Ⅱ.Bunkering of fuel oilA
Ⅰ onlyB
Ⅱ onlyC
both Ⅰ and ⅡD
neither Ⅰ nor Ⅱ
考题
单选题When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）A
The high temperature facilitates primary gravity separationB
Most of the oil and organic solvents are raised to the top layerC
The high the temperature is, the more the top oil will be collectedD
The high temperature has little use on the separation of emulsified oil
考题
单选题Oil water separators are used to ensure that ships don’t discharge oil when （） bilge water.A
to pump offB
being pumpedC
pumping outD
it pumping out
考题
单选题The emergency bilge suction valve is typically used （）.A
to inject cleaning additives when the bilges are extremely dirtyB
when the main condenser becomes fouled, in order to provide additional cooling water circulationC
to connect the rose box to the independent bilge suctionD
if the bilges become flooded and they can not be emptied by any other means
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