Question 366Steam Plants - Assistant Engineer

The correct answer is A) chemically treat to raise the pH to normal level. A pH of 6 indicates that the boiler water is acidic, which can lead to corrosion and damage to the boiler. To address this, the boiler water should be chemically treated to raise the pH to the normal operating range, typically between 8.0 and 10.5. This helps maintain the proper chemical balance in the boiler water and prevents further acidic conditions that could harm the boiler system. The other options are incorrect because: B) beginning a continuous boiler blowdown would not address the underlying pH issue, C) checking the DC heater is unrelated to the pH problem, and D) lowering the pH further would exacerbate the acidic condition, which is the opposite of what is needed.