ESCO Air Conditioning Practice Exam

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Prepare for the ESCO Air Conditioning Practice Exam. Study using flashcards and multiple-choice questions with detailed hints and explanations. Get ready to ace your exam!

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If R-134a vapor enters the condenser at 124 psiG and 100°F and leaves as subcooled liquid by 20°F, what will be the approximate pressure?

  1. 67 psig

  2. 87 psig

  3. 107 psig

  4. 124 psig

The correct answer is: 67 psig

When R-134a vapor enters the condenser at a high pressure and temperature, it will undergo condensation and turn into subcooled liquid. This process results in a decrease in both pressure and temperature. Therefore, the correct answer is A 67 psig. The other options are incorrect because they either do not account for the decrease in temperature or have a slightly higher pressure, which would not be possible in this scenario.

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