The components of a commercial fan coil unit include:
A) A fan and electric strip heaters.
B) A fan, a water coil, a filter, a fresh air supply, and a control system.
C) A fan, compressor and condenser.
D) A compressor, condenser, metering device, and evaporator.
[Ques. 2] What is makeup water?
A) The water circulated by the cooling tower pump
B) Water added to correct system inefficiencies
C) The water required to initially fill the cooling tower
D) Water added to replace water lost by evaporation, drift, and blowdown
[Ques. 3] The type of humidifier that uses a component submerged in water that circulates is the:
A) Plate. B) Rotating-drum. C) Bypass. D) Rotating plate.
[Ques. 4] Flue gas condensation can be prevented by:
A) Using double wall vent.
B) Running a dehumidifier in the room with the furnace.
C) Using single wall vent.
D) Passing the combustion gases over a dehumidifier before sending them up the vent.
[Ques. 5] Why do air-handling units require field adjustment during the commissioning phase?
A) The performance requirements of the blower cannot be determined in advance.
B) Manufacturing errors that affect blower performance are common.
C) To match the blower performance to the system requirements
D) Air-handling units normally do not require field adjustment.
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