Question 15Refrigeration/AC - QMED70% to pass
Which of the following statements is correct concerning the testing of an R-22 refrigeration system for leaks in an enclosed compartment with a halide torch?
AI Explanation
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.
Related Questions
#13 What must be done to use standard leak detection methods on a low-pressure refrigeration system charged with refrigerant? #14 To test for a suspected large refrigerant leak from an R-22 refrigeration system in an enclosed area, how should this be done? #16 If you find a refrigerant leak while using a halide torch, what will happen to the flame as the exploring tube approaches the leak? #17 What is the color of the flame produced by a halide torch when there is no halogenated refrigerant present at the location of the exploring tube? #18 Moisture is removed from recovered refrigerant using a recycling machine by what means?