A tank vehicle's tank could physically hold more liquid than is actually loaded onto it. Why might a driver or shipper intentionally leave it short of full volumetric capacity?

Pick an answer

1. Partial filling is done only to make the tank easier to clean afterward
2. Shippers underfill mainly to reduce paperwork, not because of weight limits
3. Filling it completely could put the vehicle over its legal weight limit, since dense liquids can reach that limit before the tank is physically full
4. Leaving room in the tank has no relationship to legal weight limits

Correct!

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