The wet chemical extinguisher can discharge for up to forty seconds at a maximum effective range of ten to twenty feet. It utilizes a foam-forming …
A, B, C… K? Fire Extinguisher Ratings Explained
This extinguisher’s classification reads 4A:80B:C, indicating suitability for use against Class A, B, and C fires. The letters in these ratings indicate the fire extinguisher’s class. A 2A:10B:C fire extinguisher, for example, can be used on Class A, B, and C fires. The numbers preceding the letters “A” or “B” indicate how effective …
People Also Ask a class b fire extinguisher has a maximum range
What is a Class B fire extinguisher?
Class B extinguishers are rated based on the number of square feet of fire they can suppress. For example, A 5-B extinguisher can cover 5 square feet of fire. Other numerical ratings include 1-B, 2-B, 10-B, 20-B, and 40-B.
Are multipurpose fire extinguishers safe for Class A fires?
You can easily see what kind of fires a multipurpose fire extinguisher is safe for by looking at the label. An ABC fire extinguisher, for example, would be safe for use on Class A, Class B, and Class C fires, while an AB fire extinguisher would just be rated for Classes A & B.
How does a Class A fire extinguisher work?
These extinguishers usually use water or dry chemical powders to blanket a fire and/ or absorb the heat. The heat of the fire is removed by the water component, while the oxygen is removed by the foam. Class A extinguishers are rated based on their water equivalency. Each A is matched to 1 1/4 gallons of water.
How to choose the right type of fire extinguisher for your facility?
Choosing the right type of fire extinguisher for your facility comes down to accurately identifying the hazards that are present. It’s good to remember that you may need more than one fire extinguisher, or, you might choose a multipurpose fire extinguisher.
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Firexo 113B Class B Fire Test Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher