Free practice quiz · 8 questions

Hazmat Field Safety Quiz: Drums, Confined Spaces and Spills

Answer every question, then press Check my answers to see your score and an explanation for each one. Study first with the guide: Drum and Container Handling at Hazardous Waste Sites.

1. How should an unlabeled drum at a cleanup site be treated?

Answer: As hazardous until identified. HAZWOPER requires unlabeled drums to be treated as hazardous until characterized.

2. Crystals around a drum bung may indicate:

Answer: Shock-sensitive or peroxide-forming material. Treat the drum as potentially explosive and get specialist help.

3. What should be on hand before moving drums that may leak?

Answer: Overpack drums, absorbent and a spill containment plan. 1910.120(j) requires salvage drums, absorbent and spill containment for the volume being moved.

4. In a confined space, which should be tested first?

Answer: Oxygen. Test oxygen first, then combustibles, then toxics.

5. The confined space attendant should:

Answer: Stay outside, monitor entrants and summon rescue. Attendants never enter for rescue unless relieved and trained for it.

6. A small spill that workers in the area can safely absorb with no significant hazard is:

Answer: An incidental release. Incidental releases are not HAZWOPER emergency response.

7. Where do you report a release at or above a CERCLA reportable quantity?

Answer: National Response Center, 1-800-424-8802. Report immediately to the National Response Center and follow your emergency plan.

8. A retrieval system with a mechanical device is required for vertical permit spaces deeper than:

Answer: 5 feet. 1910.146(k)(3)(ii) requires a mechanical retrieval device for vertical spaces more than 5 feet deep.

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