🔍 Key Concepts

• Classes of fire and which class electrical fires fall under • Why water- or water-based agents can be dangerous on energized electrical equipment • Properties of carbon dioxide and other non-conductive agents used aboard ship

💭 Think About

• First, identify which answer choices involve water or aqueous solutions and think about what happens if you spray those on live electrical equipment. • Consider which extinguishing media are non-conductive and do not leave residue that could damage electrical components. • Ask yourself: which type is commonly placed near switchboards and electrical panels on ships, and why that specific type is preferred there?

✅ Before You Answer

• Verify which agents in the options are water-based or conductive (these are generally unsafe on live electrical fires). • Confirm which agent is non-conductive and leaves no residue, making it suitable for delicate electrical equipment. • Check standard shipboard practice: what type of portable extinguisher is normally installed near control panels, radio rooms, and electrical switchboards?