The correct answer to this question is the reverse lay. What this does is relocates the male coupling from being at the front of the bed to the end instead.

The female coupling connects to the engine (nozzles have female couplings, engine apparatus usually has male connections), so the male coupling always points towards the fire. With that, if you're following a hose, say out of a building, you would want to find the male coupling and follow the hose behind the male coupling.

If the slave cylinder does not have a flared nut coupling, then it should have a snap connector. The line end plugs into the cylinder and the coupling snaps to hold it into place.

A fire hose is used to transfer water. It is generally connected to a pump (which is connected to a water source), and has a nozzle on the other end. When the valve to which the hose is connected is opened (with the pump running), water will flow down the length of the hose to the nozzle.

The firefighter will direct the nozzle where he wishes the water to go, and will open the gate on the nozzle. As water sprays onto the fire, the firefighter will actively direct the stream or spray to most effectively extinguish the blaze.

We also see fire hose used to connect two or more pieces of equipment. If a large fire requires a truck to apply water, the truck will set up close to the fire, and fire hose will be laid to an engine. This allows the engine , which is connected to a water source, to pump that water to the truck.

control coupling

content coupling

common coupling

data coupling

external coupling

message coupling