Practice question

Which container most likely holds a high-pressure liquefied gas such as propane?

  1. MC-306 / DOT 406 truck
  2. MC-331 truck (bolted manway, hemispherical heads, rounded ends)
  3. MC-307 / DOT 407 truck
  4. Atmospheric storage tank with a cone roof

Answer: B — MC-331 truck (bolted manway, hemispherical heads, rounded ends)

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