Fluid mechanics basics: select the correct pressure relation Definitions: Absolute pressure, Gauge pressure, Atmospheric pressure. Choose the correct equation relating these three.
Mechanical Engineering
Thermodynamics
Difficulty: Easy
Choose an option
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AAbsolute pressure = Gauge pressure + Atmospheric pressure
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BGauge pressure = Absolute pressure + Atmospheric pressure
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CAtmospheric pressure = Absolute pressure + Gauge pressure
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DAbsolute pressure = Gauge pressure − Atmospheric pressure
Answer
Correct Answer: Absolute pressure = Gauge pressure + Atmospheric pressure
Explanation
Concept/Approach
- By definition: pabs = patm + pgauge.
Final AnswerAbsolute pressure = Gauge pressure + Atmospheric pressure