Question 267Steam Plants - Assistant Engineer

The correct answer is B) Close the recirculating valve when the proper atomization temperature is reached. This is the correct answer because when warming up the fuel service system, it is important to close the recirculating valve once the fuel oil reaches the proper atomization temperature. This prevents damage to the fuel oil service pump by ensuring that the hot, recirculating fuel oil is not continuously circulated through the pump, which could cause the pump to overheat. The other options are incorrect because: A) Bypassing the fuel oil meter would not directly prevent damage to the pump; C) Stripping water from the fuel oil settlers is a separate maintenance task; and D) Heating the fuel oil in the settlers to the atomization temperature is necessary, but does not specifically address the recirculating valve.