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
Low compression in a diesel engine could be caused by（）
A
worn or broken cylinder liner sealing rings
B
high cooling water temperature
C
worn or broken piston rings
D
low fuel oil pressure
参考解析
解析：
暂无解析
相关考题：
Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?A.compression must be low for effective spark ignitionB.compression must be low for required horsepower and torque generationC.compression must be low to prevent pre-ignitionD.compression must be low to have effective pre-ignition
Combustion knock occurring in a diesel engine can be caused by _____.A.low coolant temperatureB.insufficient fuelC.high ambient temperatureD.carbon buildup on the injector tips
Overspeed of the diesel engine driving an electric generator could cause ______.A.low voltage tripB.reverse power tripC.damage to windingsD.excessive exhaust temperatures
A smoking exhaust from an operating diesel engine could be caused by( ).A.low sulfur content in the fuelB.a loose injector inlet connectionC.late fuel injectionD.high injection pressure
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
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If a diesel engine driving a generator turns over freely but fails to fire properly, the cause could be （）Aexcessive compression pressureBair in the fuel linesChigh fuel pressureDexcessive load
单选题The ignition of the fuel in diesel engine is caused by the （） of compression of the air previously admitted into the cylinders.Avacuum pressureBspecific gravityCheatDviscosity
单选题Which of the listed problems can be a cause of low compression pressure in a diesel engine?（）Aclogged air filterBcompression strokeCburned exhaust valvesDall of the above
单选题Worn main bearing will cause the compression ratio of an auxiliary diesel engine to（）AincreaseBdecreaseCremain the sameDincrease on compression decrease on expansion
单选题White smoke exhausting from a diesel engine can be caused by a （）Ahigh combustion temperatureBhigh compression pressureCcracked cylinder linerDfuel with a high vanadium content
单选题A sudden drop in diesel engine cylinder compression pressure can be caused by（）Aa leaking fuel injector nozzleBa clogged air filterCexcessively early fuel injectionDmalfunctioning valves
单选题If the relief valve on a diesel engine cylinder lifts, the cause could be due to （）Aliquid in the cylinderBlow compression in the cylinderChigh exhaust temperatureDpoor fuel penetration
单选题Poor combustion in a diesel engine can be caused by （）.Ahigh compression pressureBlow intake air temperatureClow exhaust pressureDhigh scavenge air temperature
单选题A diesel engine will lose power if fuel injection occurs too early because the （）Afuel will not be properly atomized in the cylinderBignition will be delayed due to low ignition temperatureCmaximum fuel expansion will occur on the compression strokeDfuel will ignite before top dead center
单选题A dark exhaust from a running diesel engine can be caused by （）Alate ignitionBwater in the fuelChigh compression temperatureDstarting valve stuck open
单选题Low compression of diesel engine may result from （）Aa worn cylinderBbroken piston ringsCany of A and BDnone of the above
单选题The loss of the diesel engine cylinder air charge through leaky valves, piston rings, worn or scored liners, would be indicated by which of the following sets of conditions?（）ALow compression pressure and high exhaust temperatureBLow firing pressure and high exhaust temperatureCLow compression pressure and low exhaust temperatureDLow firing pressure and low exhaust temperature
单选题A smoking exhaust from an operating diesel engine could be caused by （）Alow sulfur content in the fuelBa loose injector inlet connectionClate fuel injectionDhigh injection pressure
单选题A drop in compression pressure in one cylinder of a diesel engine can be caused by（）Aa leaking fuel injection nozzleBa clogged air filterCearly fuel injectionDburned valves
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Cold weather starting of a diesel engine is more difficult than warm weather starting due to（）Ause of low viscosity oil in cold weatherBincreased moisture content of inlet air in cold weatherCincreased drag of pistons and bearings due to increased oil viscosityDhigher compression pressures reached due to smaller clearances existing in the engine during cold weather
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Persistent knocking in one cylinder of a diesel engine could be caused by（）.Aa low load on that cylinderBsluggish piston ring actionCexcessive piston crown coolingDexcessive clearance of piston pin
单选题Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?（）Acompression must be low for effective spark ignitionBcompression must be low for required horsepower and torque generationCcompression must be low to prevent pre-ignitionDcompression must be low to have effective pre-ignition
单选题Low compression pressure in a diesel engine may be the result of （）Ainsufficient fuel supply due to fuel pump valves sticking or leakingBexcessive mechanical clearance between the piston crown and cylinder headCexcessively worn fuel pump plungerDexcessive exhaust back pressure
单选题A sudden drop in compression pressure in one cylinder of a diesel engine can be caused by（）Aa leaking fuel injector nozzleBa clogged air filterCexcessively early fuel injectionDmalfunctioning valves
单选题If a diesel engines exhaust temperature is abnormally high, the cause could be（）Atoo light of a loadBinjection timing is too earlyCoverloading of the engineDtoo low of a compression ratio