Practice question

A tank vehicle carries UN 1017 Chlorine (Class 2.3 toxic gas with subsidiary risks Class 5.1 oxidizing and Class 8 corrosive). Which placards must be displayed on the vehicle under ADR 5.3.1.1.2?

  1. Plain green placard with UN 1017 written in black
  2. Class 5.1 placard only
  3. Primary Class 2.3 placard only
  4. Primary Class 2.3 placard AND secondary Class 5.1 and Class 8 placards

Answer: D — Primary Class 2.3 placard AND secondary Class 5.1 and Class 8 placards

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