单选题As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engineSo a water separator should be mounted beneath the bottom part of the engine inlet manifoldA water separator is used in order to （）.Akeep the air from being carried into the engineBkeep the moisture from being condensedCkeep the danger from being carded into the engineDtake away the condensate from the air
单选题
As the air passes through the charge air cooler, its temperature may be reduced and moisture condensed, with the condensate in danger of being carried into the engineSo a water separator should be mounted beneath the bottom part of the engine inlet manifoldA water separator is used in order to （）.
A
keep the air from being carried into the engine
B
keep the moisture from being condensed
C
keep the danger from being carded into the engine
D
take away the condensate from the air
参考解析
解析：
暂无解析
相关考题：
Steam smoke will occur when ______.A.extremely cold air from shore passes over warmer waterB.warm dry air from shore passes over cooler waterC.cold ocean water evaporates into warm airD.cool rain passes through a warm air mass
Diesel engines obtain combustion air through turbo chargers，blowers，or ______．A.Air startersB.CarburetorsC.Natural aspirationD.Air receivers
What is the most probable cause of reduced capacity in a reciprocating air compressor ________．A.Carbon on cylinder headsB.Faulty unloaderC.Leaking air valvesD.Plugged air cooler
Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）A、It forces hot air out of the PCB、The fan is easier to remove and cleanC、It forces cooler air into the power supply quicklyD、It forces cooler air across the motherboard
单选题On opposite ends of a single shaft of a turboblower are a gas driven （）and a air compressor, which are sealed each other.Acharge air receiverBscavenging air beltCturbineDair cooler
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Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?（）AHolding the valve open for a long periodBIncreasing the starting air pressure usedCOpening the stating air valve quicklyDReducing the starting air valve size
单选题The pressurized air is usually cooled to increase the charge air （）.AviscosityBdensityCvelocityDelectricity
单选题The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its （）.ABDCBTDCCBBDCDATDC
单选题The term diesel engine scavenging means（）Adelivering more air into the cylinder than it would normally receive during an ordinary charging processBforcing the products of combustion out of the cylinder with the fresh air chargeCcollecting the air charge at the cleanerDcombustion and expansion of hot gas
单选题Defective air cooler in a diesel engine will lead to （）.Asmoky exhaustBstarting failureCoverloadDover speed
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In the starting system, the automatic valve is controlled by（）, and the cylinder start valves are controlled by（）Apilot air；pilot airBhandle；solenoidChandle；pilot air coming through the distributorDsolenoid；pilot air coming through the distributor
单选题（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.AThe fuel oilBThe lube oilCThe sea waterDThe fresh water
单选题The air filter is fixed in the （） of an air compressor.Ainlet pipeBoutlet pipeCinter coolerDafter cooler
单选题The air charge leaving an intercooler, or after-cooler of an air compressor can be expected to be （）.AsuperheatedBsuper-cooledCat or below the dew pointDAll of the above
单选题If cooling water flow through the after-cooler is interrupted,the power output of a turbocharged diesel engine will drop because the （）Aturbocharger will stallBdensity of the air charge will decreaseCscavenge effect will increaseDexhaust pressure will increase
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 condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?（）AAn increased air temperature differential between the cooler inlet and outletBA decrease in the air pressure differential across the coolerCExcessive condensate forming in the air boxDA decrease in the air temperature differential between the cooler inlet and outlet
单选题Starting air for auxiliary engines may be taken directly from the main reservoirs or through （）.Aan auxiliary reservoirBa controlling air bottleCan emergency air compressorDa main air compressor
单选题Which of the following methods is normally used to control the temperature of air distributed from individual cooling coils in an air conditioning system using a chilled water circulation system?（）AA room thermostat activates an electric heater at each individual chilled air outlet when necessaryBVarying the number of passes the air makes across the coilsCVarying the temperature of the water through the coilsDVarying the quantity of water flowing through the coils
单选题The scavenge air receiver is of a simplified and modular design with integral non-return flaps, hanging cooler and two auxiliary air blowers（）AdozensBparcelsCbundlesDgallons
单选题Steam smoke will occur when（）.Aextremely cold air from shore passes over warmer waterBwarm dry air from shore passes over cooler waterCcold ocean water evaporates into warm airDcool rain passes through a warm air mass
单选题On what do you depend having the air cooler of main engine chemically washed?（）Aincreased air pressure differenced before and aft air coolerBreduced exhaust temperature in all cylindersCreduced temperature difference between water inlet and outletDboth A and C
单选题Air compressor cylinder un-loaders enable the compressor to （）.Avary their speed according to temperature and loadBstart and come up to speed before air compression beginsCchange speed according to overload demandsDreduce compressed air charge density
单选题Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）AIt forces hot air out of the PCBThe fan is easier to remove and cleanCIt forces cooler air into the power supply quicklyDIt forces cooler air across the motherboard
单选题The efficiency of turbocharge system is increased by fitting a charge air cooler （） the compressor.AinsideBbeforeCafterDagainst