Refrigeration Operator B Practice Questions - Refrigeration Operator Class B Certification Exam

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On a standard Pressure-Enthalpy (p-h) diagram, what do the constant entropy lines represent during the compression process?

The path of an ideal, frictionless (isentropic) compression process The path of a constant-temperature (isothermal) compression process The throttling process through an expansion valve The constant-pressure heat rejection in the condenser

Correct Answer:

The path of an ideal, frictionless (isentropic) compression process

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