A.filers
B.separators
C.ducted traps
D.dehumidifiers
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A.low relative humidity is maintained
B.triple banded squirrel cage fans are used
C.air circulation is a maximum
D.high relative humidity is maintained
A.admit only enough fresh outside air to provide proper ventilation
B.reduce the air reheating system load
C.lower the compressor head pressure
D.operate the purge recovery unit continuously
A.suction service valve as a vapor
B.suction service valve as a liquid
C.discharge service valve as a vapor
D.charging valve as a liquid
A.Air or Nitrogen
B.Seawater or Fresh water
C.Sodium Nitrate brine
D.Calcium Sulfate brine
The effective temperature of air is dependent upon（）
Ⅰ.relative humidity
Ⅱ.air velocity
A.Ⅰonly
B.Ⅱonly
C.Both Ⅰand Ⅱ
D.NeitherⅠnor Ⅱ
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When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
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If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
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