单选题The air supplied to the cylinders by a turbocharger is often reduced in volume by a/an （）Aair compressorBdiffuserCafter-coolerDventilator
单选题
The air supplied to the cylinders by a turbocharger is often reduced in volume by a/an （）
A
air compressor
B
diffuser
C
after-cooler
D
ventilator
参考解析
解析：
暂无解析
相关考题：
Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine byA.natural aspirationB.masked intake valvesC.air ceilsD.scavenging air
A sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/anA.turbocharger malfunction or failureB.crankcase exhauster overloadC.overload on the intercoolerD.obstruction in the engine cylinders
Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .A.Reduce engine speed to idle before removing the filterB.Soak the dirty filter in kerosene onlyC.Blow out the air inlet with compressed airD.Cover the air inlet after removing the filter
单选题Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by（）Anatural aspirationBmasked intake valvesCair cellsDscavenging air
单选题Intake air flow from a diesel engine turbocharger is directly proportional to engine（）Aexhaust gas pressureBexhaust gas temperatureCspeedDload
单选题Which of the following statements is not true concerning symptom of a fire in the scavenge air box?（）Aan increase in the exhaust temperature of the affected cylinderBthe turbocharger may surgeCthe explosion pressure in all cylinders will rise violentlyDsmoke from the turbocharger air inlet filter will be seen
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In a turbocharger, inlet air velocity is increased in the（）.Ainlet nozzle ringBstationary diffuser passagesCcompressor outlet voluteDrotating impeller vanes
单选题When used in conjunction with a turbocharger, the main function of an after-cooler is to （）Aincrease the density of the cylinder air chargeBprevent turbocharger overheatingCliminate the need for a pre-coolerDremove moisture from air compressed by the turbocharger
单选题Fuel is not supplied to the corresponding cylinders due to （）.Aa failure of the motorBa failure of lubricatorCa failure of cylinderDa failure of fuel pump
单选题The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）Aquantity of air it takes in and retains in the cylinders during a given time periodBproportion of trapped air that is utilized in the combustion processCthermodynamic efficiency of the engine cycleDall of the above
单选题Exhaust temperature increases in all cylinders, the possible cause may be（） (1) increased scavenging air temperature (2) air in fuel pumps and fuel valves (3) fouling of air and gas passagesA(1)+(2)B(1)+(3)C(2)+(3)D(1)+(2)+(3)
单选题（）are supplied by main switchboard directly.ASuez Canal searchlight, air compressor and air conditioning compressorBAir compressor, boiler blower and refrigeration plantCBoiler blower, Suez Canal searchlight and refrigeration plantDSuez canal searchlight, air compressor and boiler blower
单选题The engine will fail to start unless （）.Athe pressure of the starting air is high enoughBthere is enough air in the air reservoirsCthe air is supplied into the cylinders in the appropriate sequenceDall of the above
单选题Cooling the intake air supplied to a diesel engine will （）.Areduce mean effective pressureBdecrease average compression pressureCdecrease air charge densityDincrease power output
单选题Compressed air is supplied by air compression to （）.Athe air receiversBthe starting valvesCthe cylinder coversDthe distributors
单选题Which of the following problems can cause an above normal air temperature to develop in the intake manifold of a turbocharged and after-cooled diesel engine?（）AFaulty turbocharger turbine diffuser ringBFaulty turbocharger compressor ringCInsufficient cooling water flowDClogged air intake filters
单选题（） in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.ABecauseBOwing toCForDNo matter
单选题The compressed air is supplied by （） to the air reservoirs.AcompressorsBforced fansCventilatorsDgenerators
单选题The primary task of the compressed air system is to deliver the starting air necessary for （）Astarting the MEBstarting the emergency electric alternatorCdriving the main turbineDdriving the turbocharger
单选题It is often necessary to put an engine into （） service with one or more cylinders cut out, or with a turbocharger secured.AadditionalBpermanentCtemporaryDlong
单选题When the air charge contacts with the cylinders and pistons and mixes with the residual gases, it will（）Aincrease in temperatureBlose its energy partlyCexpand and do workDbegin to be compressed
单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）AReduce engine speed to idle before removing the filterBSoak the dirty filter in kerosene onlyCBlow out the air inlet with compressed airDCover the air inlet after removing the filter
单选题An operating turbocharged diesel engine that suddenly loses power, is due to a/an（）Arestricted turbocharger air intakeBoil leak into the turbochargerCdribbling injectorDlow fuel viscosity
单选题The engine is started with （） supplied from air receivers.Apressure oilBpressure waterCcompressed airDcooling water
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If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）Acheck the air filter for obstructionBcheck for an exhaust leakCcheck the exhaust temperatureDsecure the engine