🔍 Key Concepts

• Behavior of low-velocity fog nozzles versus high-velocity fog nozzles • How droplet size and nozzle pressure affect reach and breaking up of the stream • Differences between fog streams and solid streams in terms of range and heat absorption

💭 Think About

• Think about what happens to water droplets when they leave the nozzle at low pressure compared to high pressure — which will travel farther before falling out? • Compare how tightly the water stays together in a fog pattern versus a solid stream — which pattern is designed mainly for reach, and which for heat absorption and protection? • Ask yourself: if droplets are finer and spread out more, do they tend to go farther or shorter distances than a more concentrated stream?

✅ Before You Answer

• Verify which stream type is normally used when maximum reach/range is required • Confirm how increased nozzle pressure changes the distance that a fog pattern can effectively travel • Make sure you distinguish the range of low-velocity fog from both high-velocity fog and a solid stream separately before choosing