Oxy-acetylene welding is a common welding technique that uses oxygen and acetylene gases to produce a high-temperature flame capable of melting metals for joining.
The gases used in different types of welding would include:
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Question context
This question is part of ⚙️ Mechanical Eng within the broader 🛠️ Engineering Essentials subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.