The HVACR technician's role in indoor air quality is to:
A) Perform laboratory tests on collected material.
B) Install HEPA filters to alleviate all indoor air-quality concerns.
C) Communicate with the building owner and the occupants on how the interacting systems of a building affect indoor air quality.
D) Perform microscopic analysis to determine the origin of pollutants.
C
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A ____ horse will wing in, and the striding leg may actually strike the supporting leg. Further, its hooves will wear unevenly.
A. pigeon-toed B. calf-kneed C. splayfooted D. cow-hocked
Water vapor in the air condenses on the evaporator coil:
A) All the time, even when the system is not operating. B) Whenever the evaporator is below the dew point of the air. C) Whenever there is moisture in the refrigerant. D) Whenever the system is operating.
This electrical component allows current to flow in only one direction and operates similar to a check valve
A) Bleed resistor B) Semiconductor C) Diode D) Capacitor
In a(n) ______________________________ air is first compressed to an intermediate pressure and then further compressed to a higher pressure.
Fill in the blank(s) with the appropriate word(s).