Measurement of pressure - one atmosphere.

Barometric Pressure

Air or gas pressure measured in a standard unit. (Pascal, psi, bar)

Used to help prevent skin damage when working, for example, with oils.

Terminal of a transistor that becomes conductive to the emitter when energised. The trigger terminal of transistors and thyristors.

A colour coat requiring final protection in the form of a sprayed clearcoat. The basecoat provides colour effects and appearance, while the clearcoat provides gloss as well as UV and chemical resistance.

Reading, writing, speaking in English (or Welsh) and using numbers sufficiently well to be able to function in society and at work. Key skills and basic skills overlap at levels 1 and 2.

Battery

An old type of combustion chamber looking like a bath tub when the cylinder head is turned over.

A chemical device that will give out an electrical current when connected into a circuit.