🔍 Key Concepts

• All-purpose fire hose nozzle positions (shut, straight stream, fog) • Difference between high-velocity fog, low-velocity fog, and solid stream • How nozzle handle movement changes pattern and velocity of water discharge

💭 Think About

• On a standard all-purpose nozzle, what happens to the water pattern when you move the handle forward versus backward? • Which action changes the pattern of the water (fog vs stream), and which would change the pressure at the nozzle? • Does producing low velocity fog depend more on pump pressure or on nozzle adjustment?

✅ Before You Answer

• Identify which choices affect nozzle pattern rather than pump discharge pressure • Recall which handle position corresponds to wide-angle fog on an all-purpose nozzle • Confirm whether a separate applicator is required for low velocity fog when using an all-purpose nozzle