How are the markings on 5-inch hose indicated?

• A. Double line at 50' and single lines at 25' and 75'.
• B. Line markings are color-coded every 25 feet.
• C. No markings at 25' or 75'.
• D. Single white or black line at 25' & 75', double line at 50'.

Answer: (D)

Distance markings on 5-inch hose show how far the hose has been laid, using 25-foot increments for quick measurement. The pattern is a single line at the 25-foot and 75-foot points, with a double line at the 50-foot point, and these markings are usually white or black for visibility. This setup lets firefighters easily estimate distance from the source to the nozzle or to a hydrant, which helps with coordinating pump pressure, water supply, and overall deployment. The single/double line arrangement at these specific distances provides a clear, repeatable cue that is faster and more reliable than generic color coding every 25 feet.