Question 1532 Deck General

The correct answer is A) the inert gas system deck water seal is drained and secured. The inert gas system deck water seal should not be drained and secured, as it is a critical safety feature that prevents the backflow of air into the inert gas system. A properly functioning inert gas system is essential for maintaining a safe, oxygen-depleted atmosphere in the cargo tanks during LPG discharge operations. Draining and securing the deck water seal would compromise the integrity of the inert gas system and create a potentially hazardous situation. The other options (B, C, and D) all represent proper safety measures that should be in place during LPG cargo operations, as they ensure adequate ventilation, proper instrumentation, and the maintenance of a safe, inert atmosphere in the cargo tanks.