🔍 Key Concepts

• Firefighting nozzle positions on combination nozzles (off, straight stream, fog) • Difference between straight stream, high-velocity fog, and low-velocity fog patterns • Typical orientation of the handle (horizontal vs. vertical) for changing flow or pattern

💭 Think About

• Think about how most standard fire nozzles work: what does moving the handle from horizontal to vertical usually do? • Which pattern is generally used for protecting firefighters and absorbing heat in shipboard fires? • When the handle is straight up-and-down, is that usually fully closed, fully open, or a specific pattern setting?

✅ Before You Answer

• Recall from training which handle position gives maximum water flow through the nozzle. • Visualize the pattern you see when the nozzle is fully opened with an applicator attached—does it look like a narrow, solid stream or a wide cone of droplets? • Confirm whether fog patterns (especially high-velocity) are typically associated with the nozzle being in its fully open position.