🔍 Key Concepts
• Fire extinguisher classes (A, B, C) and which type is used for flammable liquids like paint and solvents
• Where the CFR places extinguishers for paint lockers / flammable liquid lockers (outside at the exit, not inside the locker)
• Difference between extinguisher “type” (A/B/C)” and “size” (I/II)
💭 Think About
• Ask yourself: Is paint and thinner more like wood/paper trash, flammable liquids, or energized electrical equipment? That will tell you whether you need an A, B, or C type extinguisher.
• Think about why the extinguisher is placed outside the paint locker exit instead of inside. What hazard is that trying to protect against?
• Compare the answer choices: once you know the correct class (A, B, or C), then decide which size (I vs II) is typically required for a high‑hazard space like a paint locker.
✅ Before You Answer
• Be sure you match the extinguisher class to the fuel: paint, solvents, and thinners are flammable liquids.
• Confirm that “I” and “II” refer to size/capacity, not different fire classes.
• Verify in the regulations that paint lockers require an extinguisher of the correct class for flammable liquids and of sufficient capacity for that hazard.