Question 176Steam Plants - QMED

The correct answer is C) Add water to seal the bowl. When a centrifugal lube oil purifier is operating and oil is discharging through the water discharge port, it indicates that the bowl seal has been compromised. To remedy this, the proper action is to add water to the bowl, which will help reseal the bowl and prevent further oil discharge. The other options are incorrect because: A) Increasing bowl speed would not address the underlying issue of the compromised seal; B) Decreasing the oil temperature would not stop the oil from discharging; and D) Doing nothing is not the appropriate response, as the oil discharge needs to be addressed to maintain the proper operation of the purifier.