Also known as: PB-
PB has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of PB in Technology.
Barometric pressure (also known as atmospheric pressure) is the force exerted by the atmosphere at a given point. It is known as the "weight of the air". A barometer measures barometric pressure. Measurement of barometric pressure can be expressed in millibars(mb) or in inches or millimeters of mercury (Hg). Normal pressure at sea level is 1013.3 millibars or 29.92 inches of mercury.
TechnologyA device that uses engine vacuum to assist you in braking the vehicle. Helps the brake pedal to activate the hydraulic pistons in the master cylinder .
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