Regulations & SafetyCâu 50 / 240
A technician needs to warm a refrigerant cylinder to raise its pressure during charging. Which method is safe?
a.Use a propane torch on the cylinder base
b.Heat it with an electric heat gun on high
c.Set the cylinder in a bucket of warm water (no hotter than about 90°F)
d.Place the cylinder over an open flame
Giải thích
The safe way to warm a cylinder is to place it in a bucket of warm water no hotter than about 90°F, which gently raises pressure without overheating. A torch, open flame, or high-heat gun can create dangerous pressure and can thermally decompose refrigerant into toxic gases. Never apply direct flame or concentrated heat to any refrigerant cylinder.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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