Practice question

For which label numbers does ADR require an emergency escape mask for each crew member?

  1. Only Class 9 environmentally hazardous marks
  2. Labels 2.3 (toxic gas) and 6.1 (toxic substances)
  3. Only blank orange plates on packaged mixed loads
  4. Every Class 3 package regardless of quantity

Answer: B — Labels 2.3 (toxic gas) and 6.1 (toxic substances)

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