Why should each trailer's tires and wheels be inspected separately in a doubles or triples combination, rather than assuming the lead trailer's condition applies to all?

Pick an answer

1. Only the lead trailer's tires affect vehicle safety
2. Rear trailer tires are never checked during a pre-trip inspection
3. Each trailer's tires wear and are exposed differently, so problems on one trailer may not appear on another
4. All trailers in a combination always share identical tire wear patterns over time no matter how each one is loaded or driven

Correct!

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