Saturday, 25 June 2022, 5:44 AM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary

DA (Dual Action)

Refers to a power sander used for flatting substrates.

DA (Dual Action) Sander

A machine used for random orbital sanding and buffing. The pad of a DA sander travels in a randomized orbital pattern, rather than taking a simple circular path. DA sanders minimize the swirl marks that commonly result from rotary sanding and greatly reduce the time necessary to produce feather-edges.


A device to reduce oscillations or vibrations. A kind of damper.


Component that reduces the oscillations of a spring in a suspension system. A device that smoothes out fluctuations.


The reduction of oscillations or smoothing out of fluctuations.

Damping Chamber

An air space in which a damper flap moves that acts to reduce oscillations.

Darlington Circuit

Two transistors connected so that the first switches the second. Used to switch high currents.


A damper used on some variable venturi carburettors.


In computer science, data is anything in a form suitable for use with a computer. Data is often distinguished from programs. A program is a set of instructions that detail a task for the computer to perform. In this sense, data is thus everything that is not program code.

Data Link

General term for a connection to a scanner or similar diagnostic tool.