admit only enough fresh outside air to provide proper ventilation
reduce the air reheating system load
lower the compressor head pressure
operate the purge recovery unit continuously
第1题：
In an air conditioning system, moisture is removed from the air by ______.
A.filters
B.separators
C.ducted traps
D.dehumidifiers
第2题：
What should you be concerned with when loading and securing vehicles on a Ro-Ro ________．
A.Number，position and angle of lashes
B.Number of axles
C.Disconnecting the battery cables to prevent fire hazard
D.Minor air pressure changes in the tires
第3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.Cooling the air to a temperature just above dew point
B.Heating the air to a point at which moisture will boil off ,then re-cooling it
C.Cooling the air to a point below dew point, then reheating it
D.Heating the air and then cooling it to a point below dew point
第4题：
possible
necessary
practicable
impracticable
第5题：
第6题：
When loading a cargo of taconite，proper sequencing of loading by hatch number is necessary to ______．
A.Provide the proper trim
B.Prevent negative stability from developing
C.Prevent excessive longitudinal stresses
D.Control list
第7题：
According to this passage, which of the following statements is true?
A.In boiler and machinery spaces, there is the air conditioning.
B.In the boiler rooms the requirement of air volume should meet 25-50% of combustion requirement.
C.To maintain the comfort zone in the separate control room the air conditioning plant should be fitted.
D.The comfort conditions can be maintained in the engine room all the time.
第8题：
Ventilation ().
A、is a system for moving fresh air
B、can cut indoor pollution to a safe level
C、can cause some diseases
D、is better done through air-conditioning
第9题：
Would you like the air-conditioning on?的意思是：（）？
第10题：
evaporation
condensation
liquefies
vaporization