🔍 Key Concepts

• All-purpose fire hose nozzle positions and their effects on water flow • Difference between solid stream, low velocity fog, and high velocity fog patterns • How handle position usually relates to waterflow ON/OFF and pattern control on standard shipboard nozzles

💭 Think About

• Look at how the handle moves from position A to B to C. Which direction appears to be opening the nozzle more, and which seems to be shutting it? • Think about which pattern (solid, low velocity fog, high velocity fog, or no water) would logically come first as you begin moving the control from the fully closed position. • On a typical all-purpose nozzle, is the handle straight up more likely to be fully open, partially open, or shut off?

✅ Before You Answer

• Identify which handle position (A, B, or C) most clearly looks like full shutoff and which looks like fully open. • Match the fully open position to the pattern that would use the greatest water volume and pressure at the tip. • Remember that high velocity fog is a tight, powerful spray, while low velocity fog is a wider, softer spray—consider which pattern fits best when the nozzle is only partly opened.