Module 4 Flashcards
Unit of metric measurement used to describe the size of particles; approximately 0.00004 in. (exactly 0.001mm)
Micron (or micrometer)
The ability of a filter to remove contaminants
Dirt capacity
In a filter, the pressure difference that would permit collected contaminant particles to pass through the filter
Maximum allowable pressure drop
The process by which moisture collects on the surface of a material but is not absorbed by it
Adsorption
The process by which moisture is drawn into the absorbing medium instead of collecting on the surface
Absorption
Gravity contaminant separation takes place when a moving stream of air _____.
Slows down
Cyclone and louver separators remove fine particles without causing a high _____.
Pressure loss
The size of a particle of contamination is measured in _____.
Microns or Micrometers
Separators, strainers, and filters are identified or rated by the _____ of particle they will stop.
Size
To obtain the most efficient use of filtering equipment, use both surface filters and _____ filters.
Depth
Surface filters should be used to remove _____ particles.
Large
The strainer-wire weave that is preferred in air-filtration applications for its more efficient operation is the _____ weave.
Dutch Twill
Ribbon elements usually have _____ cross section.
Tapered
Name the three types of depth air filters.
Dry
Wetted
Oil Bath
An efficient intake filter for a reciprocating compressor should remove 100% of particles measuring more than _____ microns.
10
An adsorption filter removes vapor from the air by collecting moisture on the _____ of the medium.
Surface
Chemical-medium filters that change color are of the _____ type.
Absorption
Most pneumatic power tools require air that is compressed, cleaned, and _____.
Lubricated
The two basic types of air line lubricators are termed _____ and _____.
Heavy, Fine
Heavy lubricators should be used only for _____ or _____ airflows.
Continuous, High
Lubricating equipment should always be placed after the _____ equipment.
Regulating
What type of contaminant separation takes place when a stream of air is slowed down?
Gravity
What occurs when part of the filter medium breaks off and is carried along with the air?
Medium migration
Because of their ability to stop large particles, inertial separators are used as _____.
Prefilters
The usual way to remove large particles from the air stream is by using a(n) _____ filter.
Surface
Contaminant particle size is measured by the _____.
Microns
Which type of filter primarily uses a medium that collects moisture on the medium surface?
Adsorption
A strainer or filter is classified by the _____.
Size of particle it stops.
What type of oil is used to lubricate pneumatic equipment?
Uncontaminated
If a filter stops 96% of particles of a given size, that particle size determines its _____.
Nominal rating
The best point in pneumatic system to place lubricating equipment is after the _____.
Regulator
