Question 1309 Deck General

The correct answer is D) Isolates hazardous areas from nonhazardous areas. The deck water seal in an inert gas system is designed to create a water barrier that separates hazardous areas, such as cargo tanks, from nonhazardous areas. This water seal prevents the flow of inert gas into closed or isolated tanks, effectively isolating the hazardous areas and maintaining the necessary safety boundaries on the vessel. The other options are incorrect because they do not accurately describe the primary function of the deck water seal. It is not primarily used to relieve excessive pressures (A), prevent the flow of inert gas into closed or isolated tanks (B), or remove leftover water or soot (C).