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USCG Exam PracticeThermodynamics and heat exchangers

Which temperature scale must be used when applying gas-law and thermodynamic cycle calculations?

  1. A. Fahrenheit
  2. B. Celsius
  3. ✓ Absolute (Rankine or Kelvin)Correct
  4. D. Gauge temperature

Why C is correct

DOE-HDBK-1012 §1-1 states that absolute temperature must be used in gas-law and cycle calculations. The Rankine and Kelvin scales are the absolute scales; Fahrenheit and Celsius are relative scales referenced to arbitrary fixed points, not to absolute zero.

Cited:DOE-HDBK-1012 §1-1

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Which temperature scale must be used when applying gas-law and ther… — USCG Exam Practice · CaptainsGround