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UNIT 60 REVIEW QUESTIONS ANSWER KEY GO BACK TO INDEX
60-1) What advantages are there to adding humidity to heated air?
60-2) What is the desirable amount of relative humidity that should be maintained?
60-3) What are the two general categories of humidifiers?
60-4) What types of humidifiers work well with heat pump systems?
60-5) Which type of humidifier requires the least cleaning?
60-6) Why do most humidifiers require annual cleaning and media replacement?
60-7) Why should the humidity level in the house be reduced as the outdoor temperature
drops? Water will start to condense on the inside of windows and wall if the
60-8) Explain how a bypass humidifier works.
60-9) What are the two most common controlling elements in a mechanical humidistat?
60-10) How is steam humidifier operation different from evaporative humidifier
operation? A steam humidifier provides the energy required to evaporate the water
60-11) Why should a steam humidifier be filled with water before it is energized?
60-12) How can an improperly maintained humidifier contribute to bad indoor air quality
issues?
60-13) Why do steam humidifiers require heavier electrical wiring than bypass type
humidifiers?
60-14) What is the purpose of the flush cycle used in some steam humidifiers?
60-15) On what types of heating systems can atomizing humidifiers be used?
