Dry chemical fire extinguishers may be...

Question 1 / 270705eccef9ebacbc34ba4d462ad

Question 1 of 270705eccef9ebacbc34ba4d462ad

Dry chemical fire extinguishers may be effectively used on which of the listed classes of fires?

Question 1 of 27070

Dry chemical fire extinguishers may be effectively used on which of the listed classes of fires?

🔍 Key Concepts

• Fire classes and what materials they involve (Class A, B, C) • How dry chemical agents work to interrupt the combustion process • Which fire classes are commonly marked on a standard dry chemical extinguisher label

💭 Think About

• First recall what types of fuel are involved in Class A, Class B, and Class C fires. Which ones are solids, liquids, or involve electricity? • Think about whether dry chemical leaves a residue that might conduct electricity or not. Is it generally considered safe for energized electrical equipment? • When you picture a common ABC dry chemical extinguisher on a vessel or in a building, which letters do you usually see printed on it?

✅ Before You Answer

• Verify the definition of each fire class: Class A, B, and C • Consider whether dry chemical is meant for ordinary combustibles, flammable liquids, and/or electrical equipment • Make sure you are not confusing CO₂ extinguishers (often used for certain electrical fires) with dry chemical extinguishers

Question 1 of 27070

Dry chemical fire extinguishers may be effectively used on which of the listed classes of fires?

Class "A" only

Class "B" only

Class "B" and "C" only

Class "A" and "C" only