RAC 40 Quiz 4 Review Questions |
Latest Version | 2024/2025 | 100%
Verified
What is the main property of a refrigerant that allows it to change from liquid to gas?
The main property is its low boiling point, which allows it to evaporate and absorb heat at
low temperatures.
What is a com...
RAC 40 Quiz 4 Review Questions |
Latest Version | 2024/2025 | 100%
Verified
What is the main property of a refrigerant that allows it to change from liquid to gas?
✔✔The main property is its low boiling point, which allows it to evaporate and absorb heat at
low temperatures.
What is a common environmental concern associated with certain refrigerants?
✔✔Certain refrigerants contribute to ozone depletion and global warming.
What is the difference between a CFC and an HFC refrigerant?
✔✔CFCs (chlorofluorocarbons) contain chlorine, which depletes the ozone layer, while HFCs
(hydrofluorocarbons) do not contain chlorine and have a lower ozone depletion potential.
What does the term "Ozone Depletion Potential" (ODP) refer to?
✔✔ODP refers to the measure of a substance's ability to degrade the ozone layer compared to
CFC-11, which is assigned an ODP of 1.
1
, Why are HFO refrigerants considered more environmentally friendly?
✔✔HFOs (hydrofluoroolefins) have low global warming potential and do not contribute to
ozone depletion.
What is the significance of the ASHRAE designation for refrigerants?
✔✔The ASHRAE designation provides a standardized way to classify refrigerants based on their
chemical composition and environmental impact.
What does the term "global warming potential" (GWP) indicate for refrigerants?
✔✔GWP indicates how much heat a greenhouse gas traps in the atmosphere over a specific time
period compared to carbon dioxide.
What safety classification is given to refrigerants that are non-toxic and non-flammable?
✔✔Refrigerants classified as "A1" are considered non-toxic and non-flammable according to
ASHRAE standards.
How should refrigerants be handled to prevent environmental contamination?
✔✔Refrigerants should be handled with care, using proper recovery equipment to prevent
release into the atmosphere.
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SterlingScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.70. You're not tied to anything after your purchase.
