NFPA NFPA 704 Hazardous Materials Identification 1 — Questions and Answers
Question 1: What shape is used for the NFPA 704 hazard identification system placard?
- Circle divided into quadrants
- Square rotated 45 degrees (diamond) (Correct answer)
- Equilateral triangle
- Rectangle divided into four sections
Correct answer: Square rotated 45 degrees (diamond)
NFPA 704 uses a square rotated 45 degrees, commonly called a 'fire diamond,' divided into four colored sections.
Question 2: How many sections does the NFPA 704 hazard diamond contain?
- 3
- 4 (Correct answer)
- 5
- 6
Correct answer: 4
The NFPA 704 diamond contains exactly 4 sections: blue (health), red (flammability), yellow (instability), and white (special hazards).
Question 3: In the NFPA 704 system, which color section represents the health hazard?
- Red
- Yellow
- Blue (Correct answer)
- White
Correct answer: Blue
The blue section, located on the left side of the diamond, represents the health hazard rating.
Question 4: In the NFPA 704 system, which color section represents flammability?
- Blue
- Red (Correct answer)
- Yellow
- White
Correct answer: Red
The red section, located at the top of the diamond, represents the flammability hazard rating.
Question 5: In the NFPA 704 system, which color section represents instability or reactivity?
- Green
- Orange
- White
- Yellow (Correct answer)
Correct answer: Yellow
The yellow section, located on the right side of the diamond, represents the instability/reactivity hazard rating.
Question 6: What is the highest numerical hazard rating on the NFPA 704 scale?
- 3
- 5
- 4 (Correct answer)
- 10
Correct answer: 4
The NFPA 704 scale ranges from 0 (minimal hazard) to 4 (most severe hazard) for health, flammability, and instability categories.
Question 7: A rating of '0' in any NFPA 704 category indicates the material:
- Has a moderate hazard in that category
- Poses no significant hazard in that category (Correct answer)
- Has a severe unclassified hazard
- Has an unknown or unstudied hazard
Correct answer: Poses no significant hazard in that category
A rating of 0 means the material poses no significant hazard in that particular category under fire conditions.
NFPA NFPA 704 Hazardous Materials Identification 1
What shape is used for the NFPA 704 hazard identification system placard?