A.A room thermostat activates an electric heater at each individual chilled air outlet when necessary
B.Varying the number of passes the air makes across the coils
C.Varying the temperature of the water through the coils
D.Varying the quantity of water flowing through the coils
您可能感興趣的試卷
你可能感興趣的試題
A.increase
B.decrease
C.remain unchanged
D.be greatest at dew point
A.changing the air filter
B.recharging the system
C.changing compressor lubricant
D.renewing container vacuum
A.filers
B.separators
C.ducted traps
D.dehumidifiers
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
最新試題
The shipboard oil pollution emergency plan will be invalid after （）
（） is not installed on the main switchboar.
If separating effect is not good, which measure should be taken （）
Which of the following items don’t belong to dock repair works?（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Under MARPOL Code the ship to which it applies has to carry （）