103. As an engineer on a tanker, how would you direct the fire team to combat a large cargo space fire?

Fixed water and foam systems are the primary method for extinguishing large cargo space fires on tankers, as they cool the structure and suppress flammable vapors. Opening ullage caps or altering tank levels can increase vapor space and risk overpressure, while inert gas and carbon dioxide systems are ineffective or hazardous in open spaces.