🔍 Key Concepts

• Review what equipment provides water for fire-fighting when the main fire pump is inoperative (think: emergency or portable fire pump). • Look at how the plan distinguishes pumps, valves, and fire dampers/closures in the symbols around numbers 19, 21, 22, and 54. • Remember that pump symbols usually show a rotating element or impeller, while valves/closures show gate or flap shapes.

💭 Think About

• Among 19, 21, 22, and 54, which symbol most clearly represents a device that can move water, rather than just open/close or isolate a line? • If your fire main has no pressure, which symbol would correspond to the backup source of pressure rather than just controlling existing pressure? • Compare these four symbols to the clearly labeled fire pumps and emergency pumps elsewhere on the sheet—which one matches that family of symbols?

✅ Before You Answer

• Confirm from the legend which symbols indicate valves or dampers and eliminate those first. • Identify where on the sheet the main fire pump symbol appears and see which of 19, 21, 22, or 54 most closely resembles it (often the emergency or portable version). • Make sure the symbol you choose represents independent pumping capability, not simply a hose, hydrant, or shut-off device.