Humidity Control: Exam 2 Flashcards
A humidifier that sprays small water droplets into the air is called a _____ humidifier
atomizing
A _______ humidifier uses its own heat source to create steam
vaporizing
Which of the following is not a type of evaporative humidifier?
- plate humidifier
- atomizing humidifier
- fixed filter humidifier
atomizing
A piezoelectric humidifier is a _______ type of humidifier
atomizing
Which of the following statements about water supplied to a humidifier is true?
- saddle valve is used to tap into homes water line
- water may be supplied through a portable supply
- compression fittings connect tubing between safe valve and humidifiers water
- all of the above
all of the above
Water in which minerals have been removed by the ion exchange process is called _______ water
softened
T or F
Rotating disk humidifiers require more maintenance than rotating drum humidifiers
F
T or F
Plate humidifiers have a higher capacity than other types
F
T or F
An evaporator located in the plenum chamber of a central air conditioning system will condense out moisture, drying the air
T
T or F
The sensing element of a traditional electromechanical humidistat stretches as the moisture content of the air increases and shrinks as humidity decreases
T
T or F
Evaporative humidifiers contain an element that is kept damp
T
A ___________ humidifier is incorporated into a central hvac system through bypass ductwork or is installed in the return or supply duct work
central
A device that decreases relative humidity by condensing moisture out of the air is a ___________
dehumidifier
Dehumidification may be accomplished with special chemicals called _________
dessicants
As the moisture content of the air changes, the _________ of the sensor in an electronic humidistat changes
resistance
