🔍 Key Concepts

• Fixed fire extinguishing systems used on cargo ships • How CO₂, dry chemical, foam, and sprinkler systems work and where they are normally installed • Why cargo holds may need a system that can flood an enclosed space without causing major cargo damage

💭 Think About

• Think about which system is commonly installed as a permanently piped, fixed system for large enclosed spaces like cargo holds and machinery spaces • Consider which agents (water, foam, dry chemical, CO₂) might damage cargo or be impractical to distribute evenly throughout a big hold • Ask yourself which system can quickly smother a fire by removing oxygen from the entire volume of the compartment

✅ Before You Answer

• Verify which of the listed agents is normally used in fixed flooding systems for enclosed spaces, not just portable or local application systems • Check which systems are more typical for deck fires or machinery spaces versus deep, enclosed cargo holds • Confirm which system can be released remotely to completely fill the hold, with the space secured and personnel evacuated for safety