🔍 Key Concepts

• Operation and purpose of a halide torch leak detector • How halogenated refrigerants affect a flame color when burned • Proper technique for scanning for leaks with a torch-type detector

💭 Think About

• Think about what physically happens when a halogenated refrigerant is drawn into a flame—does it usually change the speed of the probe movement, the size of the leak detected, or the color of the flame? • Which option describes a specific observable indication you would watch for while using a flame-type leak detector? • Consider standard safety practices: is a special gas mask normally required just to operate this particular detector in ordinary leak-checking situations?

✅ Before You Answer

• Identify which choice describes a clear, direct indication that a leak is present, not just a procedure or safety precaution. • Ask yourself which statement matches common leak detection training for older refrigerant systems using torch-type detectors. • Eliminate any answers that describe procedures which would actually make small leaks harder to find (for example, moving too fast over a suspected leak).