Question 106General Subjects - QMED

The correct answer is C) The oily-water separator is in the bilge water separation processing mode with water discharging back to the bilge water holding tank with an oil content greater than 15 ppm. The reasoning is that with the solenoid in line C closed, the check valve in line E open, and the separator service pump running, the oily-water separator is in the bilge water separation mode. However, with the check valve in line G closed and valve D open, the water is being discharged back to the bilge water holding tank instead of overboard. Since valve B is closed, the oil content of the discharged water is greater than 15 ppm, as it has not been fully separated. The other options are incorrect because they describe scenarios where the water is being discharged overboard (B and D) or with an oil content less than 15 ppm (A and B), which is not the case based on the given information.