Question 228General Subjects - Assistant Engineer

The correct answer is A) The unit would not be able to transition from ending the oil discharge mode to initiating the separation processing mode. This is because the upper oil/water interface detection probe is used to determine when the oil layer has been sufficiently discharged and the unit can then transition to the separation processing mode to filter the remaining bilge water. If this probe is faulty, the unit would not be able to properly detect the transition point between the oil and water layers, preventing it from moving from the oil discharge mode to the separation processing mode. The other answer choices are incorrect because they do not directly relate to the function of the upper oil/water interface detection probe in transitioning between the oil discharge and separation processing modes.