Core (Universal)Câu 37 / 240
A technician finishes recovering R-410A but the recovery machine's low-loss fittings still hold a small amount of refrigerant. What is the correct practice?
a.Let the trapped refrigerant leak out overnight
b.Blow the hoses clear with compressed air
c.Crack the fittings open to atmosphere to relieve the pressure
d.Use low-loss fittings when disconnecting
Giải thích
Low-loss fittings and self-sealing hoses are designed to trap the small amount of refrigerant left in hoses so it is not released to the atmosphere when connections are broken. Venting the fittings, blowing lines with air, or letting refrigerant leak out are all prohibited releases. Minimizing these small emissions is part of good recovery practice under Section 608.
Trích dẫn luật: 40 CFR §82.156Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
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Câu hỏi liên quan cùng chủ đề
- A service company disposes of a chiller that held 200 pounds of R-123. Records showing the refrigerant was recovered and the quantities involved generally must be kept for at least:
- Before refrigerant that has been recovered from one owner's system can be sold to a different owner, it must be:
- A technician is scrapping an old refrigerator at a recycling yard. Who is responsible for ensuring the refrigerant is recovered before the appliance is shredded or disposed of?
- Which of the following releases of refrigerant is NOT considered illegal venting under Section 608?
- A technician suspects a disposable (single-use) refrigerant cylinder is nearly empty. What is the correct handling under Section 608 practice?
- A homeowner asks a technician to just 'top off' a leaking R-22 system every summer instead of fixing the leak. Why is intentionally not repairing a significant leak a problem?
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