In the nfpa 704 labeling system, a rating of 4 in any quadrant corresponds to:

Possible Answers:

1. The lowest degree of hazard
2. The highest degree of hazard
3. A moderately high hazard
4. A moderately low hazard

Explanation:

NFPA704 stands for National Fire Protection Association’s 704 System. This system is generally used for small containers and storage tanks, as these are the fixed facilities provided during a hazardous incident. This system is also responsible for assisting people in identifying dangerous situations. The system is used voluntarily until any local codes have not been specified.

It is a standardized system where colors and numbers are used as a sign to indicate the hazardous material stored in the containers. The label is diamond-shaped, divided into four quadrants or parts. The rating is generally done on a scale of zero to 4, where zero signifies the most negligible hazard or no unusual hazard, while 4 indicates the severe threat. The number 4 suggests that even a short exposure to this chemical is enough to cause death or severe injury. The number 2 shows moderately dangerous chemicals but has the chance to react and explode violently even in normal conditions.

References:

• https://training.fema.gov/is/courseoverview.aspx?code=is-5.a
• https://emilms.fema.gov/is_0005a/curriculum/1.html