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2. Standpipe (firefighting) - Wikipedia

   en.wikipedia.org/wiki/Standpipe_(firefighting)

   External access point for fire sprinkler and dry standpipe at a building in San Francisco, US Antique wet standpipe preserved at Edison and Ford Winter Estates. A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water ...

3. Distance line - Wikipedia

   en.wikipedia.org/wiki/Distance_line

   The length of the distance line used is dependent on the plan for the dive. An open water diver using the distance line only for a surface marker buoy may only need 50 metres (160 feet), whereas a cave diver may use multiple reels of lengths from 25 ft (7.6 m) to 1000+ ft (300 m).

4. Hose reel - Wikipedia

   en.wikipedia.org/wiki/Hose_reel

   A hose reel is a cylindrical spindle made of either metal, fiberglass, or plastic and is used for storing a hose. The most common styles of hose reels are spring driven (which is self retracting), hand crank, or motor driven. Hose reels are categorized by the diameter and length of the hose they hold, the pressure rating and the

5. Fire hose - Wikipedia

   en.wikipedia.org/wiki/Fire_hose

   The seepage of water through the hose protects the hose against damage by glowing embers falling onto it or the hose being laid on hot ground. Non-percolating hose In fire services, non-percolating hoses are generally used for delivering water. Non-percolating hose consists of a reinforced jacket made from polyester or nylon yarns.

6. Fire engine - Wikipedia

   en.wikipedia.org/wiki/Fire_engine

   Other appliances may simply have a track-way to securely hold a manually-run hose reel. In the United States, turntable ladders with additional functions such as an onboard pump, a water tank, fire hose, aerial ladder and multiple ground ladders, are known as quad or quint engines, indicating the number of functions they perform. [10]

7. Air draft - Wikipedia

   en.wikipedia.org/wiki/Air_draft

   The vessel's clearance is the distance in excess of the air draft which allows a vessel to pass safely under a bridge or obstacle such as power lines, etc.A bridge's "clearance below" is most often noted on charts as measured from the surface of the water to the underside of the bridge at the chart datum Mean High Water (MHW), [3] [4] a less restrictive clearance than Mean Higher High Water ...