Svp Trades Practice Test & Exam Prep | Saudi Arabia

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Why is adequate ventilation critical when brazing copper refrigerant lines that contain traces of oil or residual refrigerant?

Thermal decomposition of refrigerant under open flames can produce highly toxic gases like phosgene The heat from the torch will consume all nitrogen in the room, causing immediate suffocation Copper fumes can react with carbon dioxide to create explosive compounds Drafts are required to help the sil-fos solder flow evenly into the joint

Correct Answer:

Thermal decomposition of refrigerant under open flames can produce highly toxic gases like phosgene

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