Describe the purpose of a flow meter on a fire apparatus.

The purpose of a flow meter on a fire apparatus is primarily to measure the amount of water being pumped. This measurement is crucial for various reasons in firefighting operations. Knowing the exact flow rate enables firefighters to calculate the necessary water supply for extinguishing fires effectively. It helps them ensure that they are delivering adequate water to the fire scene while maintaining efficiency and safety.

Additionally, this data can inform pump operators about the system's performance, allowing for adjustments if needed to optimize water delivery and pressure levels. This ensures that the apparatus is operating within its safe parameters and that the firefighters can effectively combat the fire. Accurate flow measurement also supports the assessment of water supply sources and effectiveness during the incident, which is vital for strategic operational planning.