What should the second engine do upon arrival at a ship fire?

Upon arrival at a ship fire, the second engine's priority is to ensure an adequate and reliable water supply for firefighting operations. By laying a supply line and bringing additional attack lines, the second engine enhances the serviceability of the first unit on the scene. This action is vital in fire scenarios, especially in ship fires where firefighting conditions can be unpredictable.

Laying a supply line ensures that the attack crews have sufficient water pressure and volume to combat the fire effectively. Bringing additional attack lines allows for multiple points of attack, which can be essential in managing the spread of fire and ensuring the safety of personnel and the ship itself. This strategy maximizes firefighting effectiveness, providing vital support to contain and extinguish the fire.

Other options, while important in different contexts during firefighting operations, do not address the immediate need for water supply and fire control as directly as laying a supply line and bringing additional attack lines does. The focus in ship fire scenarios is on maintaining a robust logistical supply of water and manpower to tackle the potential hazards inherent to maritime incidents.