alleryStart learning →Pressure relative to atmospheric pressure is defined as:
ASurface pressure
BGauge pressure
CTotal pressure
DAbsolute pressure
Answer & Solution
Correct answer: B. Gauge pressure
1. Pressure readings need a stated reference point.
2. Gauge pressure is defined to be the pressure relative to atmospheric pressure.
3. A tyre gauge reads gauge pressure, not the total.
4. Absolute pressure includes atmospheric pressure as well.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 11 'Fluid Statics', sections 11.1-11.9_
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