Q. The leakage in a refrigeration system using freon is detected by (Solved)
1. Acetylene torch
2. Halide torch
3. Sulphur stricks
4. Soap and water
5. Any of the above
- b. Halide torch
1. Acetylene torch
2. Halide torch
3. Sulphur stricks
4. Soap and water
5. Any of the above