A flint and steel spark lighter is generally used to light the oxyacetylene flame?

• A. True
• B. False
• C. Sometimes
• D. Never

Answer: (A)

Lighting the torch for an oxyacetylene flame is done by igniting the acetylene gas at the torch tip with a flint-and-steel spark lighter. This provides a quick, localized ignition source that reliably starts the flame when the acetylene valve is opened. After the flame catches, you open and adjust the oxygen to reach the desired flame type, typically a neutral flame for welding. While other ignition methods exist, the traditional and most common practice in many shops is to use a flint-and-steel spark lighter to start the process.