Which agent is typically used to extinguish Class C fires on ships?

Which agent is typically used to extinguish Class C fires on ships?

• A. Water
• B. CO2
• C. Foam
• D. Dry Chemical

Answer: (B)

Electrical fires in shipboard spaces require an extinguishing method that won’t conduct electricity and won’t leave residue that could damage gear. Carbon dioxide fits this need well: it blankets the fire and displaces the surrounding oxygen without conducting electricity, making it effective in enclosed electrical compartments. Water is avoided because it can conduct electricity and cause shock or short circuits; foam adds water and can spread the fire in electrical gear; dry chemical can work but leaves powder that may foul switches and wiring and require cleanup. CO2 is the typical, practical choice for Class C fires aboard ships, used with proper safety measures since it reduces breathable air in the space.

Electrical fires in shipboard spaces require an extinguishing method that won’t conduct electricity and won’t leave residue that could damage gear. Carbon dioxide fits this need well: it blankets the fire and displaces the surrounding oxygen without conducting electricity, making it effective in enclosed electrical compartments. Water is avoided because it can conduct electricity and cause shock or short circuits; foam adds water and can spread the fire in electrical gear; dry chemical can work but leaves powder that may foul switches and wiring and require cleanup. CO2 is the typical, practical choice for Class C fires aboard ships, used with proper safety measures since it reduces breathable air in the space.