What type of system normally uses desiccant wheel dehumidifiers?
A) Whole house residential dehumidifier B) Walk-in freezer
C) Large industrial or commercial system D) Small console unit
[Ques. 2] Under normal operations, some outside air will always be included to:
A) Maintain the correct humidity levels.
B) Prevent excessive levels of CO2 from building up.
C) Increase the speed of air circulation.
D) Control the temperature more accurately.
[Ques. 3] Which of the following determines what coil will be the evaporator in the heating or cooling process?
A) The indoor coil that is always connected
B) The coil that is connected to the permanent suction
C) The coil connected to the uncovered port
D) The coil that has its port covered by the sliding valve
[Ques. 4] Communicating systems record the system ________ history, allowing service technicians to view the problems that have occurred in each of the system components.
A) temperature B) fault C) pressure D) manufacturing
[Ques. 5] Which type of dehumidifier has the highest operating efficiency?
A) A plate-type dehumidifier B) A whole-house dehumidifier
C) An atomizing dehumidifier D) A console dehumidifier
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