Flashcards in Module 3 Deck (30):
the amount of water vapor suspended in the air at any time, compared with the amount of water vapor the air could hold if it were completely saturated
Relative humidity (RH)
the temperature at which water vapor condenses as it is cooled
a device that causes air and water particles to separate
a device, usually installed between the aftercooler and the air receiver, that removes oil and moisture from the system
Contaminants in air include dirt and _____.
What are the two types of preliminary filters used with compressors?
Some dry filters use packed felt or cotton, and others use _____ elements.
Replaceable or Cartridge
In a wet filter, dirt is collected in the oil and in the ______.
The amount of water vapor contained in the air compared to what it could hold if it were completely saturated is called the _____.
The temperature at which water vapor condenses as it is cooled is called its _____.
The most common method used to remove vapor from compressed air is _____.
After coolers that are used to condense water vapor in compressed air are cooled by _____ or _____.
Water vapor in air begins to condense when the air is cooled to its _____.
Compressed air can be dried by reducing its _____.
Condensed moisture is usually removed from an aftercooler by a(n) _____ separator.
Moisture that is not removed by a separator can be extracted by directing the air through a(n) _____.
What are the two kinds of chemical air dryers used in pneumatic systems?
The type of chemical that absorbs moisture in a deliquescent air dryer is called a(n) _____.
The desiccant in an adsorption air dryer is regenerated by _____.
The required size of the receiver in a compressed air system depends on the system's requirements of _____, _____, and _____.
Air flow time, Air flow rate, Allowable pressure drop
The most common contaminants in the air are dirt and _____.
Which of the following is the most common method of removing vapor from compressed air?
d. Gravity separation
When washing a primary air filter, be sure to use _____.
A recommended solvent
Which method of heat transfer is used in a shel-and-tube heat exchanger?
What term is used to compare the amount of moisture in the air to what it could contain?
If all other factors are the same, the air that has the lowest dew point is the air that has the _____.
Least water vapor
The amount of moisture that can be held in air decreases as the _____.
Most pneumatic systems remove moisture from the air stream by _____.
What term best describes the condensation temperature of water vapor?