Question 926 Deck General

The correct answer is C) thievage. Litmus paste is used to determine the thievage, which is the amount of liquid that has been stolen or lost from a tank. Litmus paste is used to detect the presence of any acidic or basic contaminants in the liquid, which can indicate that some of the contents have been removed. The other options are incorrect because: A) The tank datum point is a reference point used to measure the depth or level of the liquid in the tank, and is not determined using litmus paste. B) Innage refers to the depth of the liquid in the tank, which is also not determined using litmus paste. D) Ullage refers to the empty space above the liquid in the tank, which is also not determined using litmus paste.