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Q. |
What is the danger associated with using a wire brush during pre-cleaning? |
A. | Bristles from the wire brush may cause false indications |
B. | Contaminants from the wire brush may cause delayed hydrogen cracking of high carbon steels |
C. | The wire brush may not adequately remove organic soils |
D. | The wire brush may close or smear metal over |
Answer» D. The wire brush may close or smear metal over |
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