Glossary “departure angle” Definition:
The maximum angle, in degrees, of a line running rearward and upward from the rear tire contact point to the lowest obstruction under the rear of the vehicle.
d
depolarize
Glossary “depolarize” Definition:
To remove or eliminate positive and negative poles from an item.
denatured alcohol
Glossary “denatured alcohol” Definition:
Ethyl alcohol, used to clean brake systems; contains methanol, rendering it unfit for human consumption.
density
Glossary “density” Definition:
Compactness; ralative mass of matter in a given volume. The density of a substance is usually compared to water, which has a density of 1. Substances which float on water have densities less than 1, while those that sink in water have densities greater than 1.
dent puller
Glossary “dent puller” Definition:
Slide hammer with a threaded tip, a hood tip, or a suction cup.
Department of Environmental Regulation (DER)
Glossary “Department of Environmental Regulation (DER)” Definition:
Department of the EPA.
demagnetization
Glossary “demagnetization” Definition:
Process of removing magnetism from a magnetized substance.
demagnetize
Glossary “demagnetize” Definition:
To reduce or remove the magnetism from an object.
DEMA
Glossary “DEMA” Definition:
Diesel Engine Manufacturers Association.
delta "p"
Glossary “delta “p”” Definition:
Term used when referring to a difference in pressure.
delta "t"
Glossary “delta “t”” Definition:
Term used when referring to a difference in temperature.
delta temperature (delta-t) test
Glossary “delta temperature (delta-t) test” Definition:
Test used to determine catalytic converter efficiency. Uses the temperature differences between the converter inlet and outlet to determine efficiency.
delta winding
Glossary “delta winding” Definition:
A alternator winding that resembles the Greek letter delta (A).
DELTMAP
Glossary “DELTMAP” Definition:
Delta Manifold Absolute Pressure (before FMEM substitution)
deka
Glossary “deka” Definition:
Prefix representing the number 10
delamination
Glossary “delamination” Definition:
Failure of the bond between layers, as when windshield glass separates from the inner layer of vinyl, or when paint peels from the substrate beneath it.
Delco Eye
Glossary “Delco Eye” Definition:
Type of built-in battery tester that provides an immediate visual indication of battery conditions.
delta connection
Glossary “delta connection” Definition:
The interconnection of three windings, such as an alternator stator in a triangular fashion. Named for the triangle shaped Greek capital letter delta, also known as a delta winding.
dehydrator filter
Glossary “dehydrator filter” Definition:
Term used for filter drier.
dehydrate
Glossary “dehydrate” Definition:
A process for dehumidifying.