Recovery & RecyclingCâu 234 / 240
Storing a filled recovery cylinder in a hot vehicle trunk in summer is dangerous mainly because:
a.The refrigerant will lose purity
b.Rising temperature raises cylinder pressure and can lead to rupture
c.The color will fade
d.The valve will corrode
Giải thích
Heat raises the pressure inside a cylinder, and an overfilled or very hot cylinder can rupture, which is why cylinders must stay below 125°F and be filled to no more than 80 percent. Store cylinders cool, upright, and secured. A hot trunk can push a marginal cylinder past its safe limit.
Trích dẫn luật: 40 CFR §82.154Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Using recovery equipment made after November 15, 1993, an HCFC-22 appliance containing 200 pounds or more of refrigerant must be evacuated to:
- Why is identifying the refrigerant before recovery especially important today?
- Which sequence correctly lists the three processes from least to most thorough?
- A refrigerant recovered from an appliance still contains oil, moisture, and acid. To make it usable again on-site, the technician would:
- Using recovery equipment made after November 15, 1993, an appliance using CFC-12 and holding less than 200 pounds must be evacuated to:
- The primary reason recovery cylinders are color-coded gray with a yellow top is to:
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