Gas Fitter Practice Test

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Study for the Gas Fitter Test. Enhance your knowledge with flashcards and multiple-choice questions, each accompanied by hints and explanations. Ace your exam!

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How many cubic feet of vapor will one pound of liquid propane (C3H8) expand to?

5.13
8.03
7.53
8.5

The correct answer is: 8.5

One pound of liquid propane (C3H8) expands to approximately 8.5 cubic feet of vapor when it is vaporized. This expansion occurs due to the physical properties of propane and its behavior during phase change. When liquid propane transitions to vapor, it undergoes a significant increase in volume. The expansion factor is a result of propane's low boiling point, which allows it to easily convert from liquid to gaseous form at standard atmospheric pressure. The conversion factor of approximately 8.5 cubic feet from one pound of liquid propane is widely recognized and used in various gas fitting and HVAC applications to ensure accurate calculations for gas flow and system design. Understanding this conversion is crucial for professionals in the gas fitting industry, as it directly influences calculations related to safety, efficiency, and performance of gas systems.