单选题Increasing the moisture content of conditioned air is known as （）.AmoisturizingBdehumidificationCdampeningDhumidification
单选题
Increasing the moisture content of conditioned air is known as （）.
A
moisturizing
B
dehumidification
C
dampening
D
humidification
参考解析
解析：
暂无解析
相关考题：
Cold weather starting of a diesel engine is more difficult than warm weather starting due toA.use of low viscosity oil in cold weatherB.increased moisture content of inlet air in cold weatherC.increased drag of pistons and bearings due to increased oil viscosityD.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
Restrictions occurring in the small orifices(孔) of pneumatic control system components can be caused by ______.A.moisture in the compressed air supplyB.excessive dryness in the compressed air supplyC.pressure surging in the compressed air receiverD.insufficient lubrication of the system components
In an air conditioning system, moisture is removed from the air by ______.A.filtersB.separatorsC.ducted trapsD.dehumidifiers
Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.A.pressure changes in the air massB.movement of the air massC.the heterogeneous nature of the air massD.upper level atmospheric changes
The moisture equilibrium chart can be used to determine the ______．A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium existsB.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodityC.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargoD.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
Which one of the following is not relevant to the others?（）A、airportB、airfieldC、airlineD、air-conditioned
单选题If the moisture content of the cargo sample is（）the Transportable Moisture Limit,then the cargo should be safe to load.AaboveBbelowCequal toDuncertain
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In an air conditioning system, moisture is removed from the air by（）AfilersBseparatorsCducted trapsDdehumidifiers
单选题Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.Apressure changes in the air massBmovement of the air massCthe heterogeneous nature of the air massDupper level atmospheric changes
单选题A re-heater in an air conditioning system functions to （）.Acontrol inlet air temperatureBcontrol inlet air volumeCmaintain relative humidity at 15%Drestore conditioned air temperature to a comfortable level
单选题An aneroid barometer on a boat should always be（）.Alocated in an air-conditioned areaBmounted in the passenger compartmentCprotected by a collision bulkheadDpermanently mounted
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Clouds form（）.Aas a mass of warm，humid air rises into the atmosphere and cools，condensing moisture into small dropletsBas winds blow across bodies of water，the sun causes the moisture to be absorbed and move upward forming cloudsCdry air compresses moisture from the atmosphere into cloudsDwhen the relative humidity of the atmosphere is low
单选题The process of removing moisture from air is known as（）.AhumidificationBdehumidificationCvaporizationDevaporation
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Air conditioning is the process of treating air to control （） its temperature, humidity, cleanliness and distribution to meet the comfort requirements of the occupants of the conditioned space.AinstantaneousBinstantaneouslyCsimultaneousDsimultaneously
单选题In reference to air conditioning, when air attains the maximum amount of moisture it can hold at a specific temperature, it is said to be （）.AsuperheatedBsaturatedCcondensedDconvected
单选题The moisture equilibrium chart can be used to determine the（）.AAbsolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium existsBDew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodityCEnthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargoDTemperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
单选题The ratio of the weight of moisture contained in a given volume of air, to the weight of moisture that the same sample would hold if saturated, is called the（）.Aabsolute humidityBrelative humidityCspecific humidityDtotal humidity
单选题The amount of moisture in a given sample of air, when compared with the amount of moisture the air could hold if totally saturated at the existing temperature of the sample, is called （）.Aabsolute humidityBspecific humidityCeffective humidityDrelative humidity
单选题If an air compressor is used to supply compressed air to outlets throughout the engine room and on deck of a vessel, the system is known as the （）.Acombustion control air systemBsupply air systemCships service air systemDlow pressure deck air system
单选题In a two-stroke engine, there are always a series of openings known as （）, and in some circumstances, there are also openings known as （）, in the part of the cylinder liner.Ascavenging air ports；exhaust portsBinlet ports；scavenging air portsCscavenging air ports；inlet portsDexhaust ports；inlet ports
单选题Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?（）ACooling the air to a temperature just above dew pointBHeating the air to a point at which moisture will boil off ,then re-cooling itCCooling the air to a point below dew point, then reheating itDHeating the air and then cooling it to a point below dew point
单选题By far the greatest item of maintenance of the reciprocating air compressors concerns （）.Athe lubricationBthe coolingCthe moisture separationDthe valves
单选题Hot air can hold（）.Aless moisture than cold airBmore moisture than cold airCthe same amount of moisture as cold airDmoisture independent of air temperature
单选题If an air compressor is used to supply air primarily to the combustion control system and other pneumatic controllers, the entire system is known as the （）.Acontrol air systemBforced draft air systemCsupply air systemDships service air system