TM 10-4320-307-24
Section II. DEFINITION OF UNUSUAL TERMS
A
Abrasion - A scraped or scuffed area. A hose may become abraded if an unshielded portion of it rubs against a piece of
bracket or another hose.
Acoustical - Sound deadening.
Actuate - To cause an action. When electric power is applied to a solenoid, it actuates a valve, causing a part in the
valve to move.
Aline - To arrange in a line vertically and/or horizontally.
Allocation - Assignment of duties or materials according to plan.
Approved - Permitted to be used for a specific purpose by the person or group who is authorized to grant approval.
Assembly - A combination of parts that may be taken apart without destruction, which has no application or use of its own
but is needed for the completeness of a more complex item with which it is combined, or to which it is attached.
C
Capacity - The volume, amount, or quantity that can be held or contained.
Carbon monoxide - A poisonous gas that is made while a fuel is burning, especially if there is not quite enough air. The
gas is colorless, odorless, and tasteless, but it can cause illness or death. See the warnings on the Warning page at front
of manual.
Cavitation - Condition caused when engine speed is increased beyond point of maximum suction vacuum. Cavitation is
indicated by loud cracking noise in pump housing and is harmful to the pump unit.
Combustion - A chemical change, especially oxidation, accompanied by the production of heat and light. A combustion
engine functions by burning fuel to produce heat, i.e., energy.
Component - A part or a combination of parts which together accomplish a function.
Compressed air - Air that is under pressure. When the compressed air in a hose or pipe is allowed to escape (such as
when you use an air gun), the air moves very fast and is used to blow away dirt and chips for cleaning.
Condensation - A liquid formed from a vapor. Moisture carried in warm air will condense when it reaches a cold area.
such as the surface of a fuel tank in subzero weather.
Corrosion - A gradual wearing away caused by chemical action. Metals exposed to salt water are likely to corrode.
D
Deteriorate - A worsening of condition usually as a result of age or hostile environment, as opposed to mechanical
damage.
Distortion - The bending, twisting, or any other dynamic change of a surface.
Dunnage - Padding or loose material placed in a shipping container to prevent damage to contents.
E
Exhaust - The gases that leave the engine through the tailpipe while the engine is running.
Expendable - An item that is not repairable and is discarded if damaged.
Exposure - Being in the presence of something, or in contact with something. Skin is exposed to cleaning solvent when
the solvent contacts the skin during cleaning operations.
Glossary-2
