单选题Load control on a diesel engine is accomplished by （）.Aregulating the speed of the turbochargerBrotating the fuel injector pump plungerCregulating the speed of the fuel oil transfer pumpDchanging engine timing
单选题
Load control on a diesel engine is accomplished by （）.
A
regulating the speed of the turbocharger
B
rotating the fuel injector pump plunger
C
regulating the speed of the fuel oil transfer pump
D
changing engine timing
参考解析
解析：
暂无解析
相关考题：
An increase in load on a diesel engine results in _____ of speed of the crankshaft.A.a reductionB.an increaseC.an outingD.a downwards
In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.A.governor droopB.speeder spring tensionC.fuel rack lagD.load on the engine
单选题Load control on a diesel engine is accomplished by （）.Aregulating the speed of the turbochargerBrotating the fuel injector pump plungerCregulating the speed of the fuel oil transfer pumpDchanging engine timing
单选题One of the purposes for water cooling the exhaust manifold in marine diesel engine is to （）Areduce lube oil temperatureBraise exhaust temperature reduceCexcessive heating of engine roomDreduce load on cooling water pump
单选题A connecting rod in a four-stroke/cycle diesel engine is subject to（）Atension load twice each crankshaft revolutionBcompression load during power and compression strokesCinertia load once every four crankshaft revolutionsDbending loads at bottom and top dead center
单选题Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.Awheelhouse control stationBengine room control stationCcaptains officeDchief engineers office
单选题The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）Aprevent engine back pressure at heavy loadsBincrease total engine efficiency at low loadsCprevent boiler corrosion at low engine loadsDimprove engine fuel consumption at any load
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 emits blue exhaust smoke as a result of（）Acold intake airBexcessive compression pressureCexcessive cylinder lubricationDa light load
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When a diesel engine is operate at partial load, as compared to full load ,a decrease will occur in the average （）Aair quantity aspiratedBfuel injection pressureCcombustion pressure on the power strokeDcompression on the compression stroke
单选题Diesel engine control can be obtained by the bridge （）.Aat any timeBonly after the engine room control station is switched to “bridge control”Cwhenever the secondary station is switched to bridge controlDwith the approval of the chief engineer only
单选题In a diesel engine, blow-by is generally the result of worn（）Avalve guidesBoil control ringsCvalve seatsDcompression rings
单选题To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.Areduce the engine driven fuel pump outlet pressureBretard the fuel injector timing to reduce powerCincrease the fuel rack settingDreduce the load on the engine
单选题In a modern internal combustion diesel engine, the load carrying part of the engine is referred to as the（）Abedplate or baseBsump or oil panCcylinder blockDframe
单选题Clearance volume scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished （）.Aduring the valve overlap periodBwith only the exhaust valve openCat a pressure below atmosphericDwithout cooling the cylinders or pistons
单选题Main diesel engine control can be obtained by the bridge （）Aat any timeBonly after the engine room control station is switched to ‘bridge control’Cwhenever the secondary station is switched to ‘bridge control’Dwhenever the engine side control station is switched to ‘bridge control’
单选题A naturally aspirated diesel engine at full throttle will have an intake manifold pressure （）Aslightly less than atmospheric pressureBapproximately equal to exhaust manifold pressure at all timesCthat is widely fluctuating constantlyDdecreasing as engine load increases
单选题Maximum horsepower of a diesel engine is attained （）.Awhen the engine RPM is pulled down by overloadBat rated engine RPMCat 95 % of rated engine RPMDat 95 % of a properly adjusted governor RPM with the engine under full load
单选题An increase in the load on a turbocharged diesel engine operating at constant speed will result in an increase in （）AexhaustBair box pressureCbrake main effective pressureDall of the above
单选题An increase in load on a diesel engine results in （） of speed of the crankshaft.Aa reductionBan increaseCan outingDa downwards
单选题A diesel engine is equipped with an isochronous hydraulic governorA decrease in load will cause the engine speed to （）Adecrease onlyBincrease onlyCdecrease slightly then returned to original speedDincrease slightly then returned to original speed
单选题If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will （）Adecrease until the engine speed increasesBincrease as the load increasesCdecrease as the loadDincreases remain unchanged
单选题When the load is increased on a turbocharged diesel engine, the amount of increased air supplied by the turbocharger will（）Alag behind the increased fuel supplied to the engineBenter the engine along with the increase in the fuelCenter the engine before the increased fuel supplyDleave the turbocharger as a negative pulse
单选题On a diesel engine equipped with an isochronous governor, if the “speed droop” control is reduced to the “zero” setting, the engine （）Aspeed will drop drastically with any increase in loadBwill stop due to zero fuel supplyCwill stall upon application of loadDspeed will remain fairly constant despite load changes
单选题Scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished（）Aduring the valve overlap periodBwith only the exhaust valve openCat a pressure below atmosphericDwithout cooling the cylinders or pistons
单选题What monitoring device best indicates the load being carried by a diesel engine?（）ALube oil pressure gaugeBJacket water temperature gaugeCTachometerDExhaust pyrometer
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