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单选题
When compared to air temperature,which factor is most useful in predicting fog?（）
A
Vapor pressure
B
Dew point
C
Barometric pressure
D
Absolute humidity
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单选题The dew point temperature is（）.A
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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?（）A
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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?（）A
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单选题Which of following functions is not one of the functions of air conditioner?（）A
refreshing the airB
making person upsetC
adjusting the air humidityD
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单选题A space should be ventilated when（）.A
The cargo's temperature is colder than the dew point of the air in the spaceB
The cargo's temperature is warmer than the dew point of the air in the spaceC
The dew point of the air in the space is lower than the dew point of the outside airD
All of the above
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Injection pressuresB
Control air supply pressureC
Cooling water flow through after-coolersD
Lube oil temperature
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