Question 1325 Deck General

The correct answer is D) An inert gas system. Coast Guard regulations permit the use of an inert gas system for both fire prevention and the simultaneous inerting of cargo tanks on tank vessels. This is because an inert gas system can effectively reduce the oxygen content in the cargo tanks, which is necessary to prevent the risk of fire or explosion. The other options, such as the fire main system, fixed water spray system, and deck foam system, are not designed or approved for the simultaneous inerting of cargo tanks, which is a critical safety requirement for tank vessels.