Regulations & SafetyCâu 63 / 240
Why is it important to never mix different refrigerants in the same recovery cylinder?
a.There is no problem mixing refrigerants
b.Mixed refrigerants usually cannot be reclaimed and often must be destroyed at added cost
c.Mixed refrigerants weigh less and are easier to carry
d.Mixing improves the resale value
Giải thích
Mixing different refrigerants in one cylinder generally makes the mixture impossible to reclaim to a purity standard, so it often must be destroyed, which is costly and wasteful. Mixing does not reduce weight, improve resale value, or come without consequences. Technicians should dedicate cylinders to a single refrigerant and label them clearly.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A shop owner hires technicians who recover refrigerant. What certification recordkeeping does the owner need to keep on file?
- A recovery or recycling machine used on high-pressure appliances must generally be certified to meet standards set by which organization on behalf of EPA?
- A technician notices the pressure relief valve on a recovery cylinder is corroded and weeping refrigerant. What is the correct action?
- A technician is about to recover refrigerant in a mechanical room. Which safety step best protects against oxygen displacement?
- After exceeding the leak rate threshold on a 50-plus-pound appliance and repairing the leak, the owner is generally required to:
- Which practice is safest when pressure-testing a system for leaks?
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