为节约能源,冬季空调系统的室内温度设定应()In order to save energy, the indoor temperature setting of the air conditioning system in winter should()A.冬天适当调低设定温度 The temperature should be properly adjusted to lower level in winterB.冬天适当调高设定温度 The temperature should be properly raised to higher level in winterC.避免采用智能调温设施 The intelligent temperature adjustment facilities should be avoidedD.避免人走关闭空调设施 The closing of air conditioning facilities should be avoided after users leaves

为节约能源,冬季空调系统的室内温度设定应()In order to save energy, the indoor temperature setting of the air conditioning system in winter should()

A.冬天适当调低设定温度 The temperature should be properly adjusted to lower level in winter

B.冬天适当调高设定温度 The temperature should be properly raised to higher level in winter

C.避免采用智能调温设施 The intelligent temperature adjustment facilities should be avoided

D.避免人走关闭空调设施 The closing of air conditioning facilities should be avoided after users leaves


参考答案和解析
C

相关考题:

In order to achieve greater dehumidification with an air conditioning system, you should ____.Ⅰ.reduce the cooling coil Ⅱ.temperature increase the re-heater temperatureA.ⅠonlyB.ⅡonlyC.BothⅠandⅡD.NeitherⅠnorⅡ

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?A.Cooling the air to a temperature just above dew pointB.Heating the air to a point at which moisture will boil off ,then re-cooling itC.Cooling the air to a point below dew point, then reheating itD.Heating the air and then cooling it to a point below dew point

Ventilation ().A、is a system for moving fresh airB、can cut indoor pollution to a safe levelC、can cause some diseasesD、is better done through air-conditioning

To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the_______ .A.suction service valve as a vaporB.suction service valve as a liquidC.discharge service valve as a vaporD.charging valve as a liquid

In an air conditioning system, moisture is removed from the air by ______.A.filtersB.separatorsC.ducted trapsD.dehumidifiers

检查空调室内机设置温度;空调机制冷温度夏季设定为()℃,冬季设定为()℃。

车站信号室内设备检修作业时,空调设备冬季室内温度设定在15-18℃。

空调客车的空调温控器设定温度,冬季为()。

Which of the following can conserve energy in a server room?()A、Sealing all potential cold air leaksB、Installing additional cooling fansC、Setting the temperature lowerD、Replacing the UPS with a generator

蓄电池室内温度在夏季温度高于()时及冬季温度低于()时,应及时打开空调并设定为25℃。A、30℃、0℃B、25℃、5℃C、30℃、5℃D、25℃、10℃

单选题In order to achieve greater dehumidification with an air conditioning system, you should () Ⅰ.reduce the cooling coil Ⅱ.temperature increase the re-heater temperatureAⅠonlyBⅡ onlyCBothⅠandⅡDNeitherⅠnorⅡ

单选题《集团公司节约能源管理办法》规定,办公区域夏季室内空调温度设置不低于()℃,冬季室内空调温度设置不高于()℃。A25,18B25,20C26,18D26,20

单选题In an air conditioning system, moisture is removed from the air by()AfilersBseparatorsCducted trapsDdehumidifiers

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A re-heater, as used in an air conditioning system, is designed to control the ()Achilled water temperatureBdew point temperatureCprimary air temperatureDdry bulb temperature

单选题For the proper control of the air temperature in an air conditioning system using chilled water circulation, which of the listed conditions should remain constant regardless of load changes?()AChilled water system supply temperatureBChilled water system return temperatureCCompressor discharge temperatureDCompressor suction pressure

单选题请阅读 Passage 1,完成第 21~25小题。Passage 1These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or CFCs,that are believed to damage the Earth's ozone layer.Recently,though,a system has been built in the city of Toronto,Canada,that cools buildings with little damage to the environment. In the traditional air-conditioning systems found in most large buildings,water is pumped through the building in a continuous cycle.The water is first cooled to a temperature of 4℃ in machines called chillers.It is then sent to individual units that cool the air in each room.As the water flows through the building,it gradually becomes warmer.Finally,it reaches the roof ,where it is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle begins again.Toronto lies on the shore of Lake Ontario,one of North America's Great Lakes,and the new system makes use of cold water taken from about 80 meters below the surface of the lake.At this depth,the water in the lake remains at 4℃ all year round.This is exactly the temperature to which the water in air-conditioning systems is cooled.However,the water from the lake is not pumped directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside the air-conditioning systems.After that,the lake water is added to the city's ordinary water supply.Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water.What is the function of the chillers in a traditional air-conditioning system?AThey pump the air continuously to the units in each room.BThey lower the temperature of the water in the system.CThey help the water cool down naturally on the roof .DThey gradually clean the water as it flows through the building.

单选题In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the ()Afuel must be preheatedBintake air should be preheatedClube oil outlet temperature should be increased 20℃ above normalDnone of the above

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With ducted air conditioning systems, the modern tendency is to use()Acentral air conditioning systemBhigh velocity systemClow velocity systemDsingle duct system

单选题To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the ()Asuction service valve as a vaporBsuction service valve as a liquidCdischarge service valve as a vaporDcharging valve as a liquid

单选题To add refrigerant to the high side of an air conditioning system, you should introduce the refrigerant through the ().Adischarge service valve as a vaporBsuction service valve as a liquidCcharging valve as a liquidDcondenser purge valve as a vapor

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To prevent the unnecessary loading of an air conditioning system while maintaining the designed dry bulb temperature and relative humidity in an air conditioning system, you should ()Aadmit only enough fresh outside air to provide proper ventilationBreduce the air reheating system loadClower the compressor head pressureDoperate the purge recovery unit continuously

填空题检查空调室内机设置温度;空调机制冷温度夏季设定为()℃,冬季设定为()℃。

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The humidifier’s valve of air-conditioner should be (), when the temperature is 5~8°C in the winter.AdecreasedBincreasedCfixedDclosed