People Left Baffled – why tanker trucks drag a loose chain
If you’ve ever driven behind a fuel or chemical tanker, you’ve probably noticed it – a loose metal chain hanging down and scraping along the road.
At first glance, it looks pointless. Some people assume it’s broken hardware, a leftover part, or even something the driver forgot to secure.
In reality, that “random” chain is a deliberately engineered safety feature, and it quietly prevents some of the most catastrophic accidents that can happen on the road.
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