Question 57General Subjects - QMED

The correct answer is A) non-existent. In the operation of a lube oil clarifier, the oil/water interface should not exist. The purpose of the lube oil clarifier is to separate the oil from any water or contaminants, resulting in a pure oil stream. If there is an oil/water interface visible, it indicates that the clarifier is not functioning properly and needs to be adjusted or serviced. The other answer choices are incorrect because the position of the oil/water interface is not maintained by the number of disks, the diaphragm-type weir control valve, or the ring dam. These components help regulate the flow and separation process, but the goal is to eliminate the oil/water interface altogether.