What should the D/E Candidate do if the pressure is set on the 1st line in Drill #5?

In the context of operating a fire engine and managing hose lines effectively during drills, when the pressure is set on the first line as outlined in Drill #5, deploying a 200' 2 ½" pre-connected line into service is the appropriate action. This maneuver showcases an understanding of how to efficiently respond to a situation requiring that specific diameter and length of hose, typically used for significant fire suppression efforts.

Using a 2 ½" line allows for a higher flow rate, which is crucial in combating larger fires where more water is needed to overcome the heat and put the fire out effectively. In practice, this means that the Driver Engineer ensures the line is not only deployed correctly but also ready for immediate use as dictated by the pressures that have been previously established.

Deploying this line without hesitation when the pressure is set helps maintain operational efficiency and readiness, as delaying actions might undermine the firefighting efforts or lead to confusion at the scene. It demonstrates proactive behavior in emergency response scenarios.