A wheeltapper is a railway worker whose job is to check train wheels for damage by tapping them with a hammer. The sound produced helps them identify cracks or other problems that could make the train unsafe. This role was especially important in the past when trains relied on manual inspections to ensure safety. Although modern technology has reduced the need for wheeltappers, they were once essential in keeping trains running smoothly and preventing accidents. Their work required good hearing, attention to detail, and an understanding of how train wheels function.

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