Practice question

For DOMESTIC U.S. highway transport, anhydrous ammonia (UN1005) is most commonly shipped under which hazard class with 'INHALATION HAZARD' marked on the placard?

  1. Class 2.1 flammable gas (red)
  2. Class 2.2 non-flammable gas (green)
  3. Class 5.1 oxidizer (yellow)
  4. Class 9 miscellaneous

Answer: B — Class 2.2 non-flammable gas (green)

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: Hazmat Awareness Practice Questions - NFPA 470 Hazardous Materials Awareness-Level Responder Certification Exam →