NFPA Hazmat Awareness Quizlet| Final
Take 2025| Approved Questions and
Answers
What does the blue section of the NFPA 704 label indicate?
Health hazards
What is the significance of the number 4 in the red section of the NFPA 704 label?
It indicates that the material is highly flammable and presents an extreme fire hazard
What does the yellow section of the NFPA 704 label represent?
Reactivity or stability hazards
What does the white section of the NFPA 704 label typically indicate?
Special hazards, such as radiation or acid
In the NFPA 704 system, what does a number 0 in the blue (health) section represent?
The material poses no significant health risk
What action should be taken if a material is labeled with a "W with a line through it" in the white
section of the NFPA 704 label?
Do not use water on this material
1
,What is the highest level of danger in the NFPA 704 rating system?
A rating of 4 in any of the color-coded sections (Health, Flammability, Reactivity)
How does the NFPA 704 rating system help emergency responders during a hazardous materials
incident?
It provides a quick reference to the severity of health, flammability, and reactivity hazards
What does a rating of 3 in the yellow (reactivity) section of the NFPA 704 label indicate?
The material may be unstable and could undergo violent reactions under certain conditions
How does the NFPA 704 system classify materials that are radioactive?
A symbol or additional notation in the white section will indicate radioactivity or other
special hazards
Which of the following is the primary concern when a material has a high reactivity rating in the
NFPA 704 system?
The potential for the material to explode or decompose under certain conditions
What does the number 2 in the red (flammability) section of the NFPA 704 label suggest?
The material is highly flammable and could ignite under normal conditions
Which of the following statements is true for a material with an NFPA health rating of 1?
2
, It causes mild irritation but does not pose a major health risk under normal exposure
What type of hazard does a blue section with the number 0 indicate on an NFPA 704 label?
No significant health risk
In an NFPA 704 label, which section would indicate that a material can be corrosive to skin?
The blue section (health hazard)
What does an NFPA reactivity rating of 0 indicate about a material's behavior in emergency
situations?
The material is stable and will not react with water or under typical conditions
How should responders prioritize actions if the NFPA 704 label indicates a "3" in the red
(flammability) section?
Ensure no ignition sources are present and initiate containment procedures immediately
What should be done if a material has a "3" in the yellow (reactivity) section of the NFPA 704
label during an emergency response?
Avoid heat, sparks, or shock to prevent violent reactions
What is the purpose of the special hazards section in the NFPA 704 system?
3
Take 2025| Approved Questions and
Answers
What does the blue section of the NFPA 704 label indicate?
Health hazards
What is the significance of the number 4 in the red section of the NFPA 704 label?
It indicates that the material is highly flammable and presents an extreme fire hazard
What does the yellow section of the NFPA 704 label represent?
Reactivity or stability hazards
What does the white section of the NFPA 704 label typically indicate?
Special hazards, such as radiation or acid
In the NFPA 704 system, what does a number 0 in the blue (health) section represent?
The material poses no significant health risk
What action should be taken if a material is labeled with a "W with a line through it" in the white
section of the NFPA 704 label?
Do not use water on this material
1
,What is the highest level of danger in the NFPA 704 rating system?
A rating of 4 in any of the color-coded sections (Health, Flammability, Reactivity)
How does the NFPA 704 rating system help emergency responders during a hazardous materials
incident?
It provides a quick reference to the severity of health, flammability, and reactivity hazards
What does a rating of 3 in the yellow (reactivity) section of the NFPA 704 label indicate?
The material may be unstable and could undergo violent reactions under certain conditions
How does the NFPA 704 system classify materials that are radioactive?
A symbol or additional notation in the white section will indicate radioactivity or other
special hazards
Which of the following is the primary concern when a material has a high reactivity rating in the
NFPA 704 system?
The potential for the material to explode or decompose under certain conditions
What does the number 2 in the red (flammability) section of the NFPA 704 label suggest?
The material is highly flammable and could ignite under normal conditions
Which of the following statements is true for a material with an NFPA health rating of 1?
2
, It causes mild irritation but does not pose a major health risk under normal exposure
What type of hazard does a blue section with the number 0 indicate on an NFPA 704 label?
No significant health risk
In an NFPA 704 label, which section would indicate that a material can be corrosive to skin?
The blue section (health hazard)
What does an NFPA reactivity rating of 0 indicate about a material's behavior in emergency
situations?
The material is stable and will not react with water or under typical conditions
How should responders prioritize actions if the NFPA 704 label indicates a "3" in the red
(flammability) section?
Ensure no ignition sources are present and initiate containment procedures immediately
What should be done if a material has a "3" in the yellow (reactivity) section of the NFPA 704
label during an emergency response?
Avoid heat, sparks, or shock to prevent violent reactions
What is the purpose of the special hazards section in the NFPA 704 system?
3
