Question 15Refrigeration & AC - QMED

The correct answer is D) Halide torches are useful in locating very small R-22 leaks. Halide torches are an effective tool for detecting even very small leaks in R-22 refrigeration systems. The flame of the halide torch will change color when exposed to R-22 gas, allowing the technician to pinpoint the location of the leak. This makes halide torches a valuable tool for troubleshooting and maintaining R-22 systems in enclosed spaces. The other answer choices are incorrect. A) is wrong because halide torches are suitable for R-22 leak detection. B) is incorrect because the flame turns green, not blue, in the presence of R-22. C) is wrong because a smaller flame provides more sensitivity for detecting small leaks.