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Fluid mechanics basics: select the correct pressure relation Definitions: Absolute pressure, Gauge pressure, Atmospheric pressure. Choose the correct equation relating these three.

Q: Fluid mechanics basics: select the correct pressure relation Definitions: Absolute pressure, Gauge pressure, Atmospheric pressure. Choose the correct equation relating these three.

Concept/Approach By definition: pabs = patm + pgauge. Final Answer Absolute pressure = Gauge pressure + Atmospheric pressure

Difficulty: Easy

Absolute pressure = Gauge pressure + Atmospheric pressure
Gauge pressure = Absolute pressure + Atmospheric pressure
Atmospheric pressure = Absolute pressure + Gauge pressure
Absolute pressure = Gauge pressure − Atmospheric pressure

Correct Answer: Absolute pressure = Gauge pressure + Atmospheric pressure

Explanation:

Concept/Approach

By definition: p_abs = p_atm + p_gauge.

Final Answer
Absolute pressure = Gauge pressure + Atmospheric pressure

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