VOCs are:
A) Vociferous organic cyclamates. B) Volatile odorant compounds.
C) Volatile organic compounds. D) Very odorant compounds.
[Ques. 2] Most systems can operate with up to ________ feet of lines and a maximum of ________ feet vertical distance between the indoor and outdoor units.
A) 100, 30 B) 75, 15 C) 90, 20 D) 50, 10
[Ques. 3] An open door switch on a gas furnace will cause:
A) A complete system shutdownno system operation at all.
B) The combustion process to shut down, but will not affect the indoor blower.
C) The door open alarm to sound, but will not affect system operation.
D) The indoor blower to shut down, but will not affect the combustion process.
[Ques. 4] Static pressure readings are taken on a duct system by:
A) Pointing the pressure-sensing tube perpendicular to the air stream.
B) Subtracting the velocity pressure from the total pressure.
C) Subtracting the total pressure from the velocity pressure.
D) Pointing the pressure-sensing tube into the airstream.
[Ques. 5] What does amplification mean in indoor air quality terms?
A) The combined effect of multiple forms of pollutants
B) Noise pollution that is increased in volume because of metal ducts
C) The transmitting of mechanical unit sounds through short metal returns
D) A contaminant's ability to grow and spread
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