单选题The lube oil to lubricate the surfaces of the cylinder liners is spread over by the （）.Asliding piston ringsBengines camshaftCsmall pumpsDforced feed system
单选题
The lube oil to lubricate the surfaces of the cylinder liners is spread over by the （）.
A
sliding piston rings
B
engines camshaft
C
small pumps
D
forced feed system
参考解析
解析：
暂无解析
相关考题：
Diesel engine blow-by is the leakage of combustion gases past the( ).A.oil rings onlyB.compression and scraper ringsC.cylinder liner sealingD.cylinder liner ring grooves
单选题Low compression in a diesel engine can be caused by （）Aclogged coolant passagesBa leaking cylinder head gasketClow fuel oil pressureDworn or broken cylinder liner sealing rings
单选题The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in （）Aclogged fuel injection pumpsBincreased cylinder liner wearCintake valve stem corrosionDvarnish deposit on pistons
单选题Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?（）AExcessive cylinder linerBwater in the fuel systemCCracked cylinder linerDLeaking lube oil cooler
单选题A substantial increase pressure could be an indication of a/an （）Aworn cylinder linerBfaulty cylinder relief valveCexcessive lube oil pressureDexcessive scavenge air pressure
单选题A substantial increase in crankcase pressure could be an indication of （）Aexcessive lube oil pressureBthe proper seating of new ringsCa worn cylinder linerDa malfunctioning cylinder relief valve
单选题Which of the following operation will have a direct impact on the rate of wear in a cylinder liner （）Aamount of scavenge air to the cylinderBquality of fuel injectedCviscosity of the lube oilDcompression ratio of the piston
单选题In addition to lubricating, cylinder oil assists in forming a gas seal and contains （） which clean the cylinder liner.AadditivesBwaterCgreaseDacid solution
单选题Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）Astarting the engine while hotBknurling the piston skirtCoperating the engine overheatedDscuff resistant piston rings
单选题Improper cooling of a diesel engine cylinder liner due to the accumulation of scale deposits may cause （）.Alow compression pressureBincreased piston wearCincreased cylinder lube oil consumptionDpoor contact between compression rings and liner
单选题Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）Achromium plating piston ringsBknurling the piston skirtCextended maximum power operationDapplying load to a cold diesel engine
单选题Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）ALow lube oil temperatureBDirty lube oil strainerCLow lube oil pressureDHigh lube oil temperature
单选题The main function of piston compression rings is to （）Aprevent excessive cylinder liner wearBreduce friction losses in the engineCseal the space between the piston and the linerDlimit upward flow of lube oil into the combustion space
单选题Low compression pressure in a diesel engine is caused by（）Alow water in the expansion tankBimproperly seated valvesClow fuel oil pressureDworn or broken cylinder liner sealing rings
单选题In order to increase the wearing resistance, the cylinder liner surfaces are sometimes （）.Aaluminum-platedBbronze-platedCzinc-platedDchromium-plated
单选题Low compression in a diesel engine could be caused by（）Aworn or broken cylinder liner sealing ringsBhigh cooling water temperatureCworn or broken piston ringsDlow fuel oil pressure
单选题Scuffed cylinder liner surfaces in a diesel engine can result form（）Astarting the engine hotBknurling the piston skirtCoperating an overheated engineDusing scuff resistant piston rings
单选题（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.AThe fuel oilBThe lube oilCThe sea waterDThe fresh water
单选题The main purpose of the piston oil scraper rings is to （）.Aseal the space between the piston and the linerBreduce the amount of lube oil burned in the combustion chamberCtransmit heat from the piston to the cylinder linerDdamp out fluctuations of the piston side thrust
单选题The cylinder oil will have to neutralize the acidic products of combustion and have good （） properties to keep the metal surfaces clean.AdetergentBde-oilingCdefrostingDdemulsifying
单选题A condition that can increase the foaming tendency of lube oil is （）Aexcessively high oil temperaturesBwater or moisture contaminationCfuel dilutionDlife its cylinder relief vales
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There is a support ring between the cylinder block and collar of the cylinder liner, thus carrying both the liner and the cylinder coverIt also passes to the cooling bores and to the cover（）Acooling waterBcooling oilCrefrigerantDlubricate oil
单选题If the analysis of used lube oil indicates a high content of iron particles, this could indicate（）Acorrosive deterioration of a bearingBinadequate air filtrationCexcessive ring and liner wearDexcessive cooling of lubricating oil
单选题Piston compression rings used in a diesel engine function to （）Atransfer heat from the cylinder to the pistonBscrape oil from the sides of the pistonCseal the combustion space from the crankcasesDprevent any piston contact with the cylinder liner
单选题If clearance between a piston and the cylinder wall is excessive, piston slap will occurThe slap itself is caused by （）Aalternation of side thrustBa breakdown of the lube oil film on the cylinder wallCworn piston boss piston pin bearingsDfluctuating gas pressure in the combustion space
单选题Misfiring in a diesel engine at light loads can be caused by（）Ahigh lube oil temperatureBlow lube oil temperatureCexcessive cylinder coolingDhigh air injection pressure