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

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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

單項選擇題

A lower thermostatic temperature setting will provide a desired degree of comfort in a room where （）

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

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

你可能感興趣的試題

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

A lower thermostatic temperature setting will provide a desired degree of comfort in a room where （）