A high rate of separation between oil and water is favored by ______.A.large size of oil globule(小球)B.low temperatureC.high viscosityD.high flow rate

A high rate of separation between oil and water is favored by ______.

A.large size of oil globule(小球)

B.low temperature

C.high viscosity

D.high flow rate


相关考题:

With the price of oil _______, the economy of oil-producing countries is expanding at a high rate. A.going upB.goes upC.gone upD.to go up

One of the reasons that causes oil flowed from sludge outlet of a self-cleaning purifier isA.seal water supply be cut offB.make-up water supply be cut offC.oil outlet valve closed or not open sufficientlyD.the flow rate of oil is too much

Injectors for use with heavy fuel oil must be cooled by either water or light oil to_____.A.prevent heat corrosion to internal componentsB.increase fuel delivery rate and economyC.prevent pre-ignitionD.avoid carbonization of the nozzle tips

Coalescence(聚合) is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and ______in size.A.expandB.extractC.increaseD.decrease

An oil tanker operating with dedicated clean ballast tanks shall be equipped with ______,approved by the Administration on the basis of specification recommended by the Organization,to enable supervision of the oil content in ballast water being discharged.A.An oil content meterB.An oil checkerC.An analyzer of oil contentD.A mixer of oily water

OIL-IN-WATER are ______.A.sediment of oil in waterB.oil dissolvents in waterC.solid oil aggregatesD.droplets of oil suspended in water

单选题A high rate of separation between oil and water is favored by ().Alarge size of oil globuleBlow temperatureChigh viscosityDhigh flow rate

单选题When you are transferring fuel oil to the setting tanks, precautions to be observed should include ()Aplugging gooseneck tank vents to prevent accident overflowBmaintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow lineCsounding the tanks frequently and reducing the transfer rate as the level approaches maximum fillDmaintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the ship

单选题If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be ()Aa dirty lube oil strainerBinternal water leaksCan oil suction line restrictionDexcessive wears of the cooling water pump

单选题Black smoke coming from a boiler can be caused by ().Alow water levelBhigh water levelCexcessively high fuel pressureDlow oil temperature

单选题What type of oil is not covered in the oil pollution law?()Amineral oilBmachinery oil being transferred for shipboard useCcrude oil unrefinedDnormal bilge oil and water

单选题An oil tanker operating with dedicated clean ballast tanks shall be equipped with(),approved by the Administration on the basis of specification recommended by the Organization,to enable supervision of the oil content in ballast water being discharged.Aan oil content meterBan oil checkerCan analyzer of oil contentDa mixer of oily water

单选题Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?()AWater discharging from the water outlet of the lube oil purifierBFuel oil discharging from the water outlet of the lube oil purifierCLube oil discharging from the water outlet of the lube oil purifierDA change in the lube oil viscosity

单选题An oil water monitor is required in order to measure ().Athe oil content in waterBthe water content in fuel oilCthe water level in bilge wellDthe oil level in bilge well

单选题Injectors for use with heavy fuel oil must be cooled by either water or light oil to ()Aprevent heat corrosion to internal componentsBincrease fuel delivery rate and economyCprevent pre-ignitionDavoid carbonization of the nozzle tips

单选题Demulsibility of a lube oil is defined as ().Athe ability of oil to separate from waterBthe temperature at which oil flows rapidlyCa measure of the water in a lube oil systemDan emulsion of different grades of oil

单选题Which of the following statements is true concerning an oil cooler?()AThe oil temperature is less than the cooling water temperatureBThe oil pressure is less than the cooling water pressureCThe oil pressure is greater than the cooling water pressureDThe oil flow control valve is always installed in the oil input line

单选题The position of the interface between oil and water within the centrifuge is achieved by the use of ().Agravity discBcentrifugal bowlCa stack of discsDmain sealing ring

单选题The principle of separation by which all commercially available oily water separators function is () differential between oil and water.Athe temperatureBthe viscosityCthe gravityDthe size

单选题For a L√Opurifier, if the back pressure of the oil outlet is too high, the interface between oil and water in the bowl will ().Abe interruptedBmove downwardsCmove outwardsDretain original position

单选题One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()Aseal water supply be cut offBmake up water supply be cut offCoil outlet valve closed or not open sufficientlyDthe flow rate of oily water is too much

单选题One of the reasons that causes oil flowed from sludge outlet of a self-cleaning purifier is ()Aseal water supply be cut offBmake-up water supply be cut offCoil outlet valve closed or not open sufficientlyDthe flow rate of oil is too much

单选题When bilge water is heated in a holding tank, which one of the following statements is not accurate?()AThe high temperature facilitates primary gravity separationBMost of the oil and organic solvents are raised to the top layerCThe high the temperature is, the more the top oil will be collectedDThe high temperature has little use on the separation of emulsified oil

单选题The function of lubricating oil is to ()Amaintain even distribution of bearing wearBmaintain a constant oil temperatureCmaintain a pressurized film between moving surfacesDremove entrained water

单选题Black smoke coming from a boiler can be caused by ().Alow water levelBlow oil pressureCexcessively high fuel pressureDan improper air/fuel ratio

单选题Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and () in size.AexpandBextractCincreaseDdecrease

单选题Before the sludge in a purifier is ejected,()Athe oil feeding is stopped and replaced by admitting flushing waterBthe flushing water feeding is stopped and replaced by admitting oilCthe feeding of dirty oil and flushing water is stoppedDthe feeding of dirty oil and flushing water is admitted