the altitude above sea level
the season of the year
the latitude or distance from the equator
All of the above
第1题：
Sweat damage will occur in a cargo hold containing machinery parts when ______.
A.the outside air is colder than the cargo．
B.the air temperature of the hold is higher than the outside air temperature．
C.the dew point of the hold is higher than the temperature of the cargo．
D.the dew point of the outside air is lower than the temperature of the cargo
第2题：
Air temperature varies with ______.
A.the altitude above sea level
B.the season of the year
C.the latitude or distance from the equator
D.All of the above
第3题：
第4题：
high compression pressure
low intake air temperature
low exhaust pressure
high scavenge air temperature
第5题：
The moisture equilibrium chart can be used to determine the ______．
A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists
B.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity
C.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo
D.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo
第6题：
The dew point is reached when the ______.
A.temperature of the air equals the temperature of the seawater
B.atmospheric pressure is 14.7 lbs. per square inch
C.relative humidity reaches 50%
D.air becomes saturated with water vapor
第7题：
Sweat damage in a hatch full of canned goods in cartons will occur when the ______．
A.Air temperature is higher than the temperature of the cargo
B.Air temperature is lower than the temperature of the cargo
C.Dew point is higher than the temperature of the cargo
D.Dew point is lower than the temperature of the cargo
第8题：
Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.
A.pressure changes in the air mass
B.movement of the air mass
C.the heterogeneous nature of the air mass
D.upper level atmospheric changes
第9题：
Refrigeration
Air conditioning
Ventilation
Heating
第10题：
always higher than the air temperature
always lower than the air temperature
equal to the difference between the wet and dry bulb temperatures
the temperature at which the air is saturated with water vapor