After flowing a 300 gpm line, a 6 percent drop was realized on the incoming pressure. How many additional lines of the same flow could be added?

To understand the situation, we need to analyze the relationship between flow rate and pressure drop in a firefighting scenario. When a fire apparatus flows water from a hydrant or other source, the pressure will drop due to the increased demand on the water supply system. A 6 percent drop in incoming pressure indicates that the system is still capable of supplying additional water flow without exceeding its capacity or dropping pressure below a critical level.

In this scenario, flowing one line at 300 gallons per minute (gpm) results in a 6 percent drop in pressure. To determine the number of additional lines that can be added while maintaining acceptable pressure levels, we can look at the flow and the resulting impact on pressure.

If we idealize the situation where pressure drops linearly with flow (which is a simplification), we can calculate how much additional flow can be accommodated. A 6 percent drop corresponds to one 300 gpm line.

Based on this drop, if each additional line flowing the same 300 gpm results in a similar or proportionate drop in pressure, we can estimate that, for example:

• Adding a second 300 gpm line might yield another 6 percent drop.

• A third 300 gpm line would again have