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1. According to Eric, what are we realistically conditioning when we process air?
2. In the HVAC industry, "standard" air calculations (like the 1.08 constant) are typically based on which conditions?
3. True or False: Increasing altitude from sea level to 5,000 feet has a much larger impact on air density (approx. 22% decrease) than increasing humidity from 20% to 60% (approx. 1.2% decrease).
4. What is a pitot tube used for?
5. When performing a duct traverse, ASHRAE generally recommends a straight section of duct that is how many duct diameters away from turns or fittings?
6. True or False: A manufacturer's fan performance chart is still 100% reliable for determining air flow even if the evaporator coil is significantly dirty.
7. Why does Eric recommend an auto-zeroing manometer for static pressure readings?
8. What is the primary advantage of an "active" (fan-powered) flow hood over a "passive" flow hood?
9. True or False: If you measure a 7% difference in air flow between the return and supply on a HEATING system, it always means you have a duct leak.
10. Which tool/system did Eric recommend for "forecasting" whether a new piece of equipment will work on an existing residential duct system?
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