On a pressure-enthalpy diagram, what do the short horizontal lines represent?

Refrigeration and Air Conditioning MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Refrigeration and Air Conditioningmechanical-engineering-mcqs › refrigeration-and-air-conditioning
Published
25 Jan 2019
Last updated
28 May 2026

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Explanation

In a pressure-enthalpy chart, the short horizontal lines indicate conditions where the pressure remains constant, helping to analyze processes at steady pressure.

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