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單項選擇題

As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperature will （）.

A.increase
B.decrease
C.remain unchanged
D.be greatest at dew point

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單項選擇題

Routine maintenance on a Central Control Room hermetically sealed air conditioning unit should include （）

A.changing the air filter
B.recharging the system
C.changing compressor lubricant
D.renewing container vacuum

單項選擇題

In an air conditioning system, moisture is removed from the air by（）

A.filers
B.separators
C.ducted traps
D.dehumidifiers