🔍 Key Concepts

• How fire hose couplings connect together on a ship’s fire main system • Which fitting (nozzle or hydrant/outlet) supplies water and which one discharges it • The difference between male and female couplings on standard marine fire hoses

💭 Think About

• Picture how multiple fire hoses are joined in series from the hydrant to the nozzle—what ends must match so they can be connected together? • Think about which end of the hose needs to screw onto the hydrant outlet, and which end must attach to the nozzle fitting. • If you had two hoses and wanted to extend your reach, what combination of couplings on each hose would allow them to be connected end‑to‑end?

✅ Before You Answer

• Confirm which coupling type (male vs female) is usually on the fixed hydrant outlet aboard ship. • Confirm which coupling type the nozzle body typically has so it can attach to the hose. • Check that your chosen answer would allow: hydrant → hose → (extra hose if needed) → nozzle, all to connect properly.