FDNY FDNY Hazardous Materials Response 1 — Questions and Answers
Question 1: What is the primary reference guide FDNY HazMat units use to identify unknown chemicals at an incident scene?
- Emergency Response Guidebook (ERG) (Correct answer)
- NFPA 704 Handbook
- OSHA 29 CFR 1910.120
- NIOSH Pocket Guide
Correct answer: Emergency Response Guidebook (ERG)
The Emergency Response Guidebook (ERG), published by the DOT, is the primary field reference for identifying hazardous materials and initial response actions.
Question 2: At a HazMat incident, which zone is immediately surrounding the point of release and is considered the most dangerous area?
- Cold Zone
- Warm Zone
- Hot Zone (Correct answer)
- Decontamination Zone
Correct answer: Hot Zone
The Hot Zone (also called the exclusion zone) is directly around the hazmat release and only fully protected personnel may enter.
Question 3: Which NFPA diamond placard number position indicates the health hazard of a material?
- Right (Red)
- Bottom (White)
- Left (Yellow)
- Top (Blue) (Correct answer)
Correct answer: Top (Blue)
In the NFPA 704 diamond, the blue (top-left) quadrant represents health hazard, rated 0–4.
Question 4: What level of personal protective equipment (PPE) provides the highest level of skin, eye, and respiratory protection for HazMat responders?
- Level B
- Level C
- Level D
- Level A (Correct answer)
Correct answer: Level A
Level A PPE includes a fully encapsulating vapor-tight chemical suit with SCBA, offering the maximum protection against skin and respiratory hazards.
Question 5: Which UN hazard class covers flammable liquids such as gasoline and acetone?
- Class 1
- Class 3 (Correct answer)
- Class 5
- Class 8
Correct answer: Class 3
UN Class 3 covers flammable liquids, including common fuels and solvents that have a flash point below certain thresholds.
Question 6: During a HazMat decontamination corridor, in which direction should decontamination proceed relative to the hot zone?
- From cold zone to hot zone
- From warm zone inward to hot zone
- From hot zone outward toward cold zone (Correct answer)
- Parallel to the wind direction
Correct answer: From hot zone outward toward cold zone
Decontamination flows from the hot zone outward through the warm zone (decon corridor) toward the cold zone to prevent cross-contamination.
FDNY FDNY Hazardous Materials Response 1
What is the primary reference guide FDNY HazMat units use to identify unknown chemicals at an incident scene?