单选题The interface between the liquid seal (water) and the oil should be positioned （） possible to the bowl periphery.Aas far asBas soon asCas close asDas closer as
单选题
The interface between the liquid seal (water) and the oil should be positioned （） possible to the bowl periphery.
A
as far as
B
as soon as
C
as close as
D
as closer as
参考解析
解析：
暂无解析
相关考题：
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
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 centrifugal pump may fail to deliver water when first started if the ______.A.water seal pipe is pluggedB.pump is not primedC.seal ring is properly locatedD.impeller is flooded
OIL-IN-WATER are ______．A.sediment of oil in waterB.oil dissolvents in waterC.solid oil aggregatesD.droplets of oil suspended in water
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
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You should frequently compare drum-mounted and remote-reading water level indicators（） between these have contributed to failures because of overheating through shortage of water, when a boiler was being oil-fired.AdescriptionsBdiscrepanciesCdifferentDdeflections
单选题Factor influencing the position of the interface between the liquid seal and the oil in a purifier is （）.AthroughputBback pressureCgravity discDNone of the above is wrong
单选题Before loading bulk grain，bilge wells must be covered to（）.Aadd strength to the bilge well strainerBpermit rapid flow of water to the bilge wellsCprevent cargo sifting into the bilge wellsDprevent oil，water，or other liquid from reaching the cargo
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Oil pressure in the lubrication system is（）than the static sea water head to ensure that sea water cannot enter the sterntube in the event of seal failure.AhigherBlowerCvery higherDvery lower
单选题In a disk-type lubricating oil purifier, （）Athe purifier driving gears are lubricated by the reclaimedBoil as it leaves the bowl all dirt and sludge are automatically discharged with the cooling waterCsealing water must never be supplied until after oil is fed to the unitDdeterioration of the bowl ring gasket will cause the purifier to lose its water seal
单选题A definite advantage of using water as a fire extinguishing agent is its characteristic of（）.Aalternate expansion and contraction as water in a liquid state becomes a vaporBabsorption of smoke and gases as water is converted from a liquid to a vaporCrapid contraction as water is converted from a liquid to a vaporDrapid expansion as water absorbs heat and changes to steam
单选题The remaining oil/water mixture now flows down into the fine separating compartment and moves slowly between the（） in the Turbulo separator.Acatch platesBswash platesCcover platesDbedplates
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 film of oil between the rings and the liner is not only essential for the lubrication but also （） achieving a gas seal.Aplay a great part onBrun a role inCplays an important part inDacts as important part at
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Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?（）AHeight of the machineBTemperature of the liquid sealCGravity discDBowl diameter
单选题A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）Apurge lube oil from the liquid refrigerantBrecover water purged from the systemCseparate foul gases from the receiverDpurge non-condensable gases without losing refrigerant
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The separating effect of oil separator is not very good, the reason may be（）Atoo little seal waterBimproper gravity discCoil discharging pump not working very wellDlow water level of the working water
单选题To minimize the formation of carbon deposits on fuel injection nozzles, you should （）Aavoid using liquid-cooled nozzles whenever possibleBavoid low cooling water temperaturesCavoid prolonged overloading of the engineDmake certain the gasket seal between the nozzle and cylinder head is tight
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In a purifier, the interface between the liquid seal and the oil should be positioned as close as possible to （）.Athe outlet of oilBthe outlet of waterCthe bowl peripheryDthe center of bowl