Practice question

Which hazard classes require the vehicle crew to carry an emergency escape mask (respiratory protective equipment) for each member?

  1. Class 2.3 (toxic gases) and Class 6.1 (toxic substances) if specified
  2. Class 3 (flammable liquids) and Class 8 (corrosives)
  3. Class 1 (explosives) and Class 7 (radioactive substances)
  4. All classes of dangerous goods carried on the vehicle

Answer: A — Class 2.3 (toxic gases) and Class 6.1 (toxic substances) if specified

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