Core (Universal)Câu 3 / 240
What is the Montreal Protocol?
a.A U.S. law that sets minimum wages for HVAC technicians
b.A voluntary industry pledge to recycle scrap metal
c.A manufacturer standard for compressor efficiency
d.An international treaty to phase out the production of ozone-depleting substances
Giải thích
The Montreal Protocol, adopted in 1987, is the international treaty under which nations agreed to phase out the production and consumption of ozone-depleting substances such as CFCs and HCFCs. It is not a wage law, a compressor efficiency standard, or a metal recycling pledge. U.S. obligations under this treaty are carried out through the Clean Air Act.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Why is the stratospheric ozone layer important to life on Earth?
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- What does ODP stand for when comparing refrigerants?
- A supplier tells a technician that R-410A has an ODP of zero but a high GWP. What does GWP measure?
- Which of the following refrigerants is a CFC that has already been phased out of production?
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