Question 413General Subjects - 1st Asst/Chief

The correct answer is B. The first centrifuge should be set up as a purifier and the second centrifuge should be set up as a clarifier. The reasoning behind this is that the fuel is contaminated with both water and solids. A purifier centrifuge is designed to remove water from the fuel, while a clarifier centrifuge is designed to remove solids. By configuring the centrifuges in this order, the purifier will first remove the water contamination, and the clarifier will then remove the remaining solid contaminants, effectively treating the residual fuel. The other options are incorrect because they do not properly address the need to remove both water and solids from the fuel. Setting up the centrifuges in the wrong order or using the same type of centrifuge twice would not effectively treat the fuel.