When started, a complete oily water separating unit is first filled ______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.A.with dirty waterB.with clean waterC.by oily waterD.by mixed water
When started, a complete oily water separating unit is first filled ______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.
A.with dirty water
B.with clean water
C.by oily water
D.by mixed water
相关考题：
A centrifuge arranged to separate two liquids is known asA.an oily water separatorB.a purifierC.a centrifugal compressorD.a clarifier
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
单选题Which of the following pumps will most affect oily water separator performance and give the worst result?（）Areciprocating pumpBvane pumpCscrew pumpDcentrifugal pump
单选题The following measures can be used to improve oily water separator’s separating effect except （）Aoverhauling every two yearBworking at intervalsCrenewing filtration materialDpumping bilge water from different layers respectively
单选题The （）is fitted on an oily water separator.Asliding bowl bottomBgravity discCbowlDliquid level detector
单选题Which of the equipment listed is most effective in processing bilge slops for overboard discharge?（）A100PPM oily water separatorBAssembling the lube oil purifier as a separator and aligning bilge overboardCA 15PPM oily water separatorDA magnetic duplex strainer
单选题Upon arrival at a port, a vessel is not allowed （） her ballast water, tanker washings or bilge water and other oily water at will.Ato dischargeBto be dischargedCdischargingDbeing discharged
单选题A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by （）.Aholding its slops onboard until they can be pumped into the city sewer systemBcirculating them through the lube oil purifier to remove water and debrisCholding its slops onboard until they can be discharged to a shore side reception facilityDpumping them into a settling tank for separation before pumping the oily water residue overboard
单选题Bottom blow valves are installed on auxiliary water-tube boilers to （）Aremove suspended and precipitated solids from the boiler waterBcompletely drain the boiler in an emergency situationCprevent hardened scale deposits in the water drumDremove floating impurities from the oily water surface
单选题Before operating a non-oceangoing ship greater than 100 gross tons it must have a fixed piping system to discharge oily mixtures ashore. This system must include（）.Aapproved oily-water separating equipmentBa fixed or portable containment system at the shore connectionCa spare pump in case the main pump is inoperativeDat least one outlet accessible from the weather deck
单选题The resistance to the movement of the globule in oily water mixture depends on its size and the （） of the fluid.ApressureBvelocityCgravityDviscosity
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? （）AThe quantity of oil residues generatedBThe capacity of sludge and bilge water holding tankCThe capacity of the oily water separatorDAll of the above
单选题When oily water separator is operating, which measure （） is wrong.Apay attention to operating parametersBrenew and clean separating units in timeCcheck oil level in separator to prevent overloadDcheck separating effect, if it is bad, flush with large capacity water pump
单选题In an oily water separator the oil will travel （） to the oil collecting spaces.AupwardsBdownwardsCoutwardsDforwards
单选题The pump used to send the bilge water into the oily water separator（）the mixture because this might create finer oil particles.Ashould agitateBshould not agitateCshould mix upDshould not add up
单选题A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.Aan oily water separatorBa purifierCa centrifugal compressorDa clarifier
单选题When started, a complete oily water separating unit is first filled （）The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.Awith dirty waterBwith clean waterCby oily waterDby mixed water
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Here some oil in the oily water separator, as a result of its lower （）, will separate and rise into the oil collection space.AtemperatureBviscosityCdensityDvelocity
单选题What’s the advantage of oily water separator that meets the requirement of MEPC 60(33) over MEPC 107(49)?（）Amore economicBlarger capacity on oil treatmentCless costiveDmore capable of separating emulsified oil
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（）are used to ensure that ships don’t discharge oil when pumping out oily water from any oil contaminated space.ABoilerBIncineratorCOily water separatorDSewage treatment unit
单选题A centrifuge arranged to separate two liquids is known as （）.Aan oily water separatorBa purifierCa centrifugal compressorDa clarifier
单选题If separating effect is not good, we can improve it by （）Aflushing separator with hot waterBincreasing water supply flowCheat oily water properlyDopening manual oil discharge value
单选题In which case is the IOPP Certificate of an inspected vessel NOT invalidated? （）AThe required oily-water separator malfunctionsBThe ship is transferred to Liberian registryCAn annual survey is conducted fifteen months after the date of certificate issuanceDA 15 ppm oily-water separator is replaced by a 100 ppm oily-water separator