Core (Universal)Câu 6 / 240
A supplier tells a technician that R-410A has an ODP of zero but a high GWP. What does GWP measure?
a.How much the gas depletes stratospheric ozone
b.How much a gas contributes to global warming compared to carbon dioxide
c.The percentage of water vapor in the refrigerant
d.The working pressure of the refrigerant in a condenser
Giải thích
GWP means Global Warming Potential, which compares how much heat a gas traps in the atmosphere relative to carbon dioxide (CO2 = 1). R-410A has zero ODP because it contains no chlorine, but its high GWP is why HFCs are now being phased down under the AIM Act. GWP is not a measure of ozone depletion, working pressure, or water content.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- What is the Montreal Protocol?
- Section 608 of the Clean Air Act primarily regulates which activity?
- What does ODP stand for when comparing refrigerants?
- Which of the following refrigerants is a CFC that has already been phased out of production?
- R-22 is best classified as which type of refrigerant?
- As of January 1, 2020, what happened to R-22 (HCFC-22) in the United States?
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