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USCG Exam PracticeThermodynamics and heat exchangers

What is the relationship between absolute pressure, gauge pressure, and atmospheric pressure?

  1. A. Absolute pressure equals gauge pressure minus atmospheric pressure.
  2. B. Gauge pressure equals absolute pressure plus atmospheric pressure.
  3. ✓ Absolute pressure equals gauge pressure plus atmospheric pressure.Correct
  4. D. Atmospheric pressure equals absolute pressure plus gauge pressure.

Why C is correct

DOE-HDBK-1012 §1-1 defines the relationship as: absolute = gauge + atmospheric. A perfect vacuum is zero absolute pressure.

Cited:DOE-HDBK-1012 §1-1

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What is the relationship between absolute pressure, gauge pressure,… — USCG Exam Practice · CaptainsGround