On arrival, the second due engine should ensure what regarding water supply?

• A. Adequate water supply is established to the fire ground
• B. Command post is relocated to the street corner
• C. RIT team is formed immediately
• D. All units are withdrawn from the scene

Answer: (A)

The main idea is to ensure a continuous, adequate water supply to the fire ground as soon as the second unit arrives. Establishing that water supply is essential because it provides the flow and pressure needed for attack lines to operate effectively. The second engine typically connects to a hydrant or sets up a relay/draft as needed to feed the pump on the attack engine, so firefighters can apply water without interruption. Without a solid water source in place, nozzle pressure drops, fires progress, and operations cannot be sustained.

That’s why the best answer is that adequate water supply is established to the fire ground. Other options aren’t the immediate priority on arrival: relocating the command post is situational, forming a RIT is a safety measure invoked based on conditions, and withdrawing units would stop firefighting efforts.