Definition of a Function. A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair. Okay, that is a mouth full.
Master cylinder without booster. Single bore master cylinders: These unboosted hydraulic Master Cylinders are actuated by foot effort, via the brake pedal. The brake pressure is related to actuation force and depends on the piston bore size: the smaller the bore, the higher the pressure.
There are 3 basic types of Pistons: Dome, Bowl and Flat. Dome Piston. The Dome Piston looks just like it sounds. Instead of a flat top it has a dome that looks like the top of a dome stadium. Piston Dome refers to the amount of added volume on top of the piston compared to a flat top piston.