Question 39Steam Plants - Assistant Engineer

The correct answer is B) Momentarily close the valve in the loop seal line, and then reopen slowly. This is the correct action to re-establish a 'blown' air ejector loop seal. Closing the valve in the loop seal line momentarily allows the pressure in the loop to build back up, then reopening the valve slowly helps to reestablish the seal. This helps restore the proper vacuum in the system. The other options are incorrect because: A) Decreasing the steam pressure would reduce the ejector's ability to maintain the loop seal. C) Shutting off the second stage air ejector would disrupt the entire ejector system. D) Increasing condensate flow would not directly address the issue with the loop seal.