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| If a fluorescent dye penetrant and ultra-violet light are used for leak detection on a heat exchanger, what would be the indication of a confirmed leak? |
| A) A bright green glow at the site of leakage. |
| B) A bright orange glow at the site of leakage. |
| C) A bright purple glow at the site of leakage. |
| D) A bright red glow at the site of leakage. |
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