Which type of lay results when hose is unloaded at the scene of a fire and the pumper proceeds to the water source?

The type of lay that results when hose is unloaded at the scene of a fire while the pumper proceeds to the water source is known as a reverse lay. In this scenario, firefighters unload the hose and connect it to the appropriate appliances at the scene before the pumper moves to the source of water. This approach is effective for ensuring that the firefighting crew can quickly establish a water supply at the scene without delay, allowing them to start tackling the fire immediately.

Reverse lays allow for a quicker response once on the scene since the hose can be laid out as soon as it is unloaded, which is crucial in emergency situations where time is critical. By establishing the connection to the fire while the apparatus is en route to the water source, it mitigates wait times for the hose line to be ready when the apparatus returns. This is particularly important in firefighting, where every second counts in order to control and extinguish a fire effectively.