Practice question

What is the primary difference between Division 1.5 and Division 1.1 explosives?

  1. Division 1.5 has no mass explosion hazard under any circumstance
  2. Division 1.5 consists of very insensitive substances which have a mass explosion hazard but low probability of initiation
  3. Division 1.5 can only be carried in liquid tank vehicles
  4. Division 1.5 comprises articles with self-contained initiation mechanisms

Answer: B — Division 1.5 consists of very insensitive substances which have a mass explosion hazard but low probability of initiation

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