Question 1129 Deck General

The correct answer is D) All of the above. Tank vessel inerting refers to the introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume. This is done to make the tank atmosphere non-flammable and prevent the risk of explosions during cargo operations. This process can be used during cargo discharge to replace the volume of discharged cargo, as well as to make a gas-free tank inert prior to entry. The other answer choices are also correct descriptions of tank vessel inerting, so option D is the most comprehensive answer.