🔍 Key Concepts

• Function of the torch tip orifice in controlling gas flow • Relationship between tip size, gas pressure, and flame size in oxyacetylene welding • What factors are fixed by equipment design vs. what factors you can adjust during operation

💭 Think About

• Ask yourself: What part of the welding outfit physically limits how much gas can pass through at any given moment? • Consider which item you actually change when you need a larger or smaller flame for different metal thicknesses. • Which choices describe things that are realistically adjustable on a welding torch in normal use, and which describe things that are not how torches are designed to work?

✅ Before You Answer

• Identify which option mentions something that directly controls gas volume through the tip. • Eliminate any choice that suggests you can change tip orifice size without replacing the tip. • Check which options confuse supply conditions (like hose or regulator) with the fixed opening size at the torch tip.