Why might some tank vehicles designed for cryogenic liquids look different from standard liquid cargo tanks?

Pick an answer

1. The difference is purely a matter of exterior paint color
2. Cryogenic tanks never require any special design features
3. They typically include heavy insulation and specialized construction to maintain extremely low temperatures
4. Cryogenic tanks are visually identical to standard tanks in every respect, aside from a small warning label near the valve

Correct!

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