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A tire pressure gauge displaying bar (outside) and pounds per square inch (inside). Cold inflation pressure is the inflation pressure of tires as measured before a car is driven and the tires warmed up.
Otto cycle pressure–volume diagramThe idealized diagrams of a four-stroke Otto cycle Both diagrams: the intake (0-1 and colored green) stroke is performed by an isobaric expansion, followed by an adiabatic compression (1-2 and colored orange) stroke.