Engine_2014 : General Subjects - 3391/3524
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| 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? |
| A) To gain sensitivity, the largest possible flame should be used with the halide torch. |
| B) The flame of a halide torch will turn blue in the presence of R-22. |
| C) Halide torches are useful in locating very small R-22 leaks. |
| D) Halide torches are not suitable for detecting R- 22 leaks. |
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