Question 1090 Deck General

The correct answer is C) Reduce the pumping rate. When discharging cargo with the inert gas system in operation, the pressure in the tank needs to be maintained within the allowable limits. If the pressure starts to drop below the allowable limit, the best action is to reduce the pumping rate. This will slow down the discharge process and allow the inert gas system to maintain the necessary pressure in the tank. Cutting in another IG fan (option A) or opening the tank isolation valve (option B) may not be sufficient to address the pressure drop, and opening the pressure control valve (option D) could lead to over-pressurization of the tank. Reducing the pumping rate is the appropriate action to stabilize the tank pressure and ensure safe cargo operations.