Question 1Steam Plants - QMED

The correct answer is A) shift to a clean fuel oil strainer. A large difference in the pressures indicated by a duplex pressure gage to the fuel oil system strainer suggests that the strainer is becoming clogged, which can restrict the fuel flow. Shifting to a clean fuel oil strainer is the appropriate action to take in this situation to maintain proper fuel pressure and delivery to the boilers. The other options are incorrect because: B) securing the fuel oil service pump would further reduce fuel flow, C) increasing the fuel pump discharge pressure would not address the underlying issue of the clogged strainer, and D) reducing the firing rate of the boilers would not resolve the problem with the fuel oil system.