As chief engineer sailing aboard chemical tankers you frequently review the best practices regarding firefighting during safety meetings. Which of the following would align with industry best practice regarding the use of water in extinguishing chemical fires?

Correct Answer: Option A — Water is best used for cooling of the chemical itself as well as surrounding areas.

When dealing with chemical fires, water is primarily utilized for cooling the container or surrounding structures to prevent tank rupture or secondary ignition. Direct application to certain chemicals can cause violent reactions, splattering, or toxic runoff; therefore, cooling the perimeter is the safest and most effective tactical approach.