单选题A diesel engine is supercharged in order to（）Alower the no-load RPMsBprovide more air for combine with the fuelCincrease the no-load RPMsDprovide more fuel combine with the air
单选题
A diesel engine is supercharged in order to（）
A
lower the no-load RPMs
B
provide more air for combine with the fuel
C
increase the no-load RPMs
D
provide more fuel combine with the air
参考解析
解析：
暂无解析
相关考题：
单选题The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.AprincipleBprincipalCcauseDcase
单选题Diesel oil may be used to cool （） of a diesel engine.AcylindersBexhaust valvesCpistonsDfuel valves
单选题As a heat engine,（） energy is the source of power by which the diesel engine can be operated.AelectricBheatCmechanicalDexhaust
单选题A supercharged diesel engine when compared to a similar naturally aspirated diesel engine, will develop an increase in （）Aignition lagBengine horsepowerClube oil system pressureDspecific fuel consumption
单选题A supercharged engine differs from an un-supercharged engine it operates at an increases pressure（）.Ain whichBon whichCat whichDin that
单选题A diesel engine is supercharged in order to（）Alower the no-load RPMsBprovide more air for combine with the fuelCincrease the no-load RPMsDprovide more fuel combine with the air
单选题Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）Aincreasing the quantity of starting airBincreasing the lube oil pressureCheating the engine fuel supplyDheating the engine coolant
单选题Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started?（）AExhaust temperatureBLube oil levelCLube oil pressureDWater level in the expansion tank
单选题In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the （）.Astarting air and fuel pumpsBpiston cooling pumpsCexhaust valvesDall of the above
单选题The exhaust gases in a supercharged two-stroke/cycle diesel engine are expelled from the cylinder by （）Apumping action of the pistonBpressure of the fuel chargeCvacuum developed in the manifoldDpressure of the fresh air charge
单选题The size of the exhaust valve opening is （）Amost critical in a four-stroke cycle diesel engineBmost critical in a two-stroke/cycle diesel engineCmost critical in a four-stroke/cycle diesel engine if it is turbochargedDof equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
单选题A diesel engine fails to start because of water in the fuelIn order to start the engine, you should （）?Aturn engine with jacking gearBdrain filters and strainers and bleed off water at each injection pumpCuse ether to start the engine with blow-down valves openDblow through the cylinders and fuel lines with a drying agent
单选题The difference between a supercharged engine and an un-supercharged engine is that （）.Athe laterBthe latterCthe formerDthe farmer
单选题A diesel engine is similar to a gasoline engine except that the former has no （）.Across-headBcylinderCconnecting rodDspark plug
单选题Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because （）Abearing pressure in a four-stroke/cycle acting single diesel engine is continually reversedBbearing pressure in a two-stroke/cycle single acting diesel engine is continually reversedCthe maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engineDtwo-stoke/cycle diesel engines require more complicated lubrication piping
单选题What is the effect of heated intake air on a diesel engine? （）AIncreases efficiencyBIncreases engine horsepowerCIncreases engine lifeDReduces engine horsepower
单选题The arrangement and shape of the cams on a diesel engine camshaft directly control which of the listed groups of operating conditions?（）Aspeed, torque, and horsepower productionBfiring order, valve timing, and valve liftCfuel consumption, efficiency, and cylinder pressureDscavenge pressure, compression ratio, and exhaust pressure
单选题A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine（）Ahas little or no internal frictionBhas a lower effective compression ratioCoperates with scavenge air under a positive pressureDoperates without energy absorbing intake and exhaust strokes
单选题Some diesel engines are supercharged with a （）Aslam chargerBturbochargerCfuel atomizerDfuel injector
单选题Significant retardation of a diesel engine fuel injection timing will result in （）Asmoother engine operationBadvanced fuel ignitionCincreased fuel economyDreduced engine power
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Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will（）Aincrease engine powerBincrease engine loadCdecrease engine powerDimprove fuel economy
单选题A turbocharged, four-stroke/cycle diesel engine has a larger valve overlap than a naturally aspirated four-stroke/cycle diesel engine, in order to in crease the （）.Atemperature of the exhaust gasesBenergy supplied to the turbochargerCair pressure to the intake manifoldDpurge of exhausted gases from the cylinders
单选题The diesel engine is a type of （）.Aturbine engineBgas turbineCsteam engineDinternal combustion engine
单选题“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density（）, drives the compressor directly（）Aa modern diesel engine；a turbine wheelBa modem diesel engine；exhaust gasesCa compressor；an exhaust gas turbochargerDa compressor；a turbine wheel
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
单选题When ship navigating in rough sea, the correct operation is （）Anavigating with a low diesel engine speedBnavigating with a stable diesel engine speedCincreasing the efficiency of propellerDincreasing fuel injection
单选题What is the crank angle between any two crank throws in the firing order of a four-stroke/cycle, in line, eight cylinder diesel engine?（）A45B60C90D100