The oil components including polar compounds formed as a result of oxidation of some oil fractions in the marine environment dissolving in seawater defines ______．A.Oxidation and destructionB.DissolutionC.Oxidation and destructionD.Sedimentation
The oil components including polar compounds formed as a result of oxidation of some oil fractions in the marine environment dissolving in seawater defines ______．
A.Oxidation and destruction
B.Dissolution
C.Oxidation and destruction
D.Sedimentation
相关考题：
Oil oxidation as a result of excessively high lube oil temperature, is harmful to a diesel engine BecauseA.oil foaming will always occurB.large quantities of oil are consumedC.lube oil viscosity is always decreasedD.corrosive by-products are usually formed
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .A.all of the oil used by the engine through a filterB.some of the oil used by the engine through a filterC.some of the oil used by the engine through a centrifugeD.all of the oil used by the engine through a centrifuge
Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of ______.A.refrigerant bubbles in the lube oilB.refrigerant reducing the lube oil viscosityC.oxidation(氧化) of the lube oil from overheatingD.reducing the floc or cloud point of the oil
The complete details of a crude oil washing system aboard your vessel，including the operating sequences and procedures，design characteristics，a description of the system，and required personnel will be found in the ______.A.Oil Transfer Procedures ManualB.Crude Oil Washing Operations and Equipment ManualC.Code of Federal RegulationsD.Crude Oil Washing addendum to the Certificate of Inspection
Biodegradation of the oil slick in sea water is assisted by all the following marine micro-organisms which are capable of metabolising oil compounds except ______A.bacteriaB.mouldsC.yeastsD.seals
The process that oil spilled in sea is adsorbed on the suspended material and deposited to the bottom defines ______．A.Oxidation and destructionB.DissolutionC.Oxidation and destructionD.Sedimentation
______is not a process of weathering of the oil spilled in the sea water.A.BiodegradationB.DissolutionC.Cleaning up by crew with skimmersD.Oxidation including photooxidation
______is not a process of weathering of the oil spilled in the sea water.A.EmulsificationB.Sedimentation / SinkingC.Oxidation including photooxidationD.Burning organized by RCC
单选题The remaining oil in the lubricating pipes and ducts should be blown out with （）.AatmosphereBthe fresh waterCcompressed airDchemical compounds
单选题A dirty lube oil strainer can result in（）AcrankcaseBlow lube oil temperatureCexcessive oil consumptionDlow bearing oil pressure
单选题The oxidation by-products forming in diesel engine lube oil can cause （）ApittingBsludgeChard varnishDall of the above
单选题One characteristic of a lubricating oil adversely affecting the result of centrifuging is （）Ahigh TBN valueBlow oil floc pointClow oil demulsibilityDlow oil neutralization number
单选题During extremely cold weather, while starting an engine, it turns too slowly and fails to startThis problem is most likely the result of （）Ahigh fuel oil viscosityBlow fuel oil temperatureChigh lube oil viscosityDenergized glow plugs
单选题In some designs the cylinder oil is timed so that the oil injects only on the （）.Apiston crownBpiston grooveCpiston skirtDpiston ring belt
单选题A centrifuge will satisfactorily remove which of the following contaminants from fuel oil?（）AGasolineBWaterCLubricating oilDsulphur compounds
单选题Crankcase explosions in propulsion diesel result from（）Athe splashing of lubrication oil by the crankshaftBthe dilution of crankcase oil with particles of combustionCbroken fuel lines spraying oil on the crankcaseDthe ignition of unburned fuel and air in the crankcase
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In an oil cooler circulated by sea water, the oil is at a larger pressure the result being that any leak in the cooler will mean a loss of （）.AoilBsea waterCrefrigerantDfresh water
单选题Lube oil in the fresh water cooling system of a diesel engine may result from a （）Acamshaft seizureBlube oil pump failureClube oil cooler failureDlube oil pump overflow
单选题Engine coolant accumulating in the diesel engine lubricating oil can result from a （）Alow oil pressureBhigh coolant pressureCleaking fuel injectorDcracked cylinder head or liner
单选题In a general oil cooler circulated by sea water, the oil is at a higher pressure, the result being that any leak in the cooler will mean a loss of （）.AoilBsea waterCairDfresh water
单选题High lube oil temperatures developing in a diesel engine can result from（）Ahigh oil pressureBexcessive bearing end playCplugged oil control ringsDengine overload
单选题Water allowed to accumulate in the hydraulic system oil will cause an oxidation process producing by- products which are normally （）.Agums, acids, and varnishesBremoved by cellulose type filtersCneutralized by oil additivesDnot removed by absorbent filters
单选题Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of （）Arefrigerant bubbles in the lube oilBrefrigerant reducing the lube oil viscosityCoxidation of the lube oil from overheatingDreducing the floc or cloud point of the oil
单选题Biodegradation of the oil slick in sea water is assisted by all the following marine micro-organisms which are capable of metabolising oil compounds except（）.AbacteriaBmouldsCyeastsDseals
单选题Oil oxidation, as a result of excessively high lube oil temperature, is harmful to a diesel engine because （）Aoil foaming will occurBlarge quantities of oil are consumedClube oil viscosity is always decreasedDcorrosive by-products are usually formed
单选题Metal particles accumulated from the wearing of components in a diesel engine can result from lube oil that has been contaminated with（）.Aabrasive particlesBmetallic oxidesCcorrosive acidsDany or all of the above