Sunday, 5 May 2024, 10:12 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
O
Open CircuitApplied to an electrical circuit when the switch is 'off' or the circuit is not continuous. |
Open CoatA type of abrasive paper coating in which the abrasive particles are scattered in a low density to prevent it from clogging up. Typically found in Production Papers |
Open Period(1) The number of degrees of distributor rotation during which the primary circuit remains open. (2) The number of degrees of crankshaft rotation during which an inlet or exhaust valve remains open. |
Open-loopAn electronic control system using a comparison of sensor signals and a pre-programmed map. |
Operational SafetySafety aspects that are operational during use of a vehicle. |
Optical GaugeA measuring instrument that uses light/reflection to align steering (for example). |
OPTLOne Person Test Lane. These are lanes authorised by VOSA to conduct testing where the tester has the option of not using an assistant if so desired. |
Orange cablesThese indicate high voltages – take care. |
Orange PeelAn irregularity in the surface of a paint film resulting from the inability of the wet film to "level out" after being applied, caused by a lack of flow. Orange peel appears as a characteristically uneven or dimpled surface to the eye, but usually feels smooth to the touch. |
Orbital SanderType of sander that uses a circular motion to accomplish the sanding of different materials. |