Core (Universal)Câu 30 / 240
A technician pulls a light-green cylinder from the truck. Under the traditional color code, which refrigerant does light green identify?
a.R-410A
b.R-22
c.R-134a
d.R-404A
Giải thích
Under the traditional refrigerant color code, light green identifies R-22, while R-410A is rose (pink), R-134a is light blue, and R-404A is orange. Color codes help technicians grab the right cylinder, but the printed label must always be verified because colors can fade or be reused. Never rely on color alone to identify a refrigerant.
Luyện miễn phí toàn bộ 240 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A recovery cylinder is being filled with recovered R-404A. To leave room for liquid expansion, the cylinder must never be filled beyond what percent of its capacity?
- Cylinders used to store recovered refrigerant must be approved by which agency for transportation?
- A technician needs to identify a cylinder by its color. Which color has EPA and industry designated for refrigerant recovery cylinders?
- Under the traditional color code, which refrigerant cylinder is rose (pink)?
- A commercial supermarket rack system contains more than 50 pounds of refrigerant and develops a leak. Once the owner exceeds the applicable annual leak rate, the leak generally must be repaired within:
- Under the leak repair rules, the leak rate thresholds apply to appliances that normally contain how much refrigerant?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với EPA Section 608 Technician Certification Exam · Quy trình kiểm tra