单选题A properly honed diesel engine cylinder liner will()Aprevent piston ring wearBshorten the ring break-in periodCprevent cylinder liner glazingDappear slick and glazed
单选题
A properly honed diesel engine cylinder liner will()
A
prevent piston ring wear
B
shorten the ring break-in period
C
prevent cylinder liner glazing
D
appear slick and glazed
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
Low compression in a diesel engine could be caused byA.worn or broken cylinder liner sealing ringsB.high cooling water temperatureC.worn or broken piston ringsD.low fuel oil pressure
Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except______.A.open the indicator cocksB.supply some CYL.Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)C.put the fuel handle in the "stop" positionD.pump up the air bottle
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To function properly, oil control rings used on a diesel engine piston must distribute sufficient oil to all parts of the cylinder wall and must also().Aprevent any lubricant from reachingBprevent excessive lubrication from reaching the combustion spaceCProvide metal-to-metal contact to seal the cylinder against blow-byDassure a positive means of scraping carbon accumulation from the cylinder
单选题Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except ()Aopen the indicator cocksBsupply some LO to cylinder liner wall with lubricatorCput the fuel handle in the stop positionDpump up the air bottle
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One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the ()AcrankcaseBpistonCcylinder linerDcrank cheek
单选题In a diesel engine, excessive cylinder liner wear will cause () (1) increased blow-by (2) wear between the piston ring and grooveA(1) only is correctB(2) only is correctCboth (1) and (2) are correctDneither (1) or (2) axe correct
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Diesel engine cylinder head test cocks are used to()Acheck cylinder lubrication prior to starting engineBconnect exhaust gas analyzers to determine engine efficiencyCpressure test cylinder heads to check for leaksDremove moisture accumulations from cylinder prior to starting
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In a diesel engine, blow-by is a result of combustion gases leaking into the crankcase past the ()Awrist pin bushingsBcompression ringsCcylinder liner sealsDcylinder liner sealing ring
单选题In a diesel engine, an integral liner is one in which the cooling water () Ⅰ.flows through the cylinder liner jackets Ⅱ.touches the outer side of the linerAⅠ onlyBⅡ onlyCboth Ⅰ and ⅡDneither Ⅰ and Ⅱ
单选题In a diesel engine, a cylinder liner should be replaced if it is () Ⅰ.Scuffed Ⅱ.ScoredAⅠ only is correctBⅡ only is correctCboth Ⅰ and Ⅱ are correctDneither Ⅰ or Ⅱ are correct
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Diesel engine blow-by is the leakage of combustion gases past the ()Aoil rings onlyBcompression and scraper ringsCcylinder liner sealingsDcylinder liner ring grooves
单选题A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an ()Aincrease in engine speedBincrease in cylinder turbulenceCleaking needle valveDreduction in cylinder turbulence
单选题A pyrometer is an instrument used to measure the temperature of the diesel engine()AexhaustBfuel oilCcooling waterDcylinder liner
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What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?()ASpark plugBHeat of compressionCCarburetorDGlow plug
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In a diesel engine, excessive cylinder liner wear will cause () Ⅰ.increased blow-by Ⅱ.wear between the piston ring and grooveAⅠonly is correctBⅡ only is correctCboth Ⅰ and Ⅱ are correctDneither Ⅰ or Ⅱ are correct
单选题Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except()Aopen the indicator cocksBsupply some CYL Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)Cput the fuel handle in the “stop” positionDpump up the air bottle
单选题Diesel engine cylinder head test cocks are used to ()Acheck cylinder lubricationBconnect the pressure indicator pressureCtest cylinder headsDconnect the exhaust gas pyrometers
单选题Compared to a naturally aspirated diesel engine, a supercharged diesel engine has()Aa cylinder air charge of higher pressureBincreased pumping lossesCless valve overlapDreduced blow-by