Question 99General Subjects - Assistant Engineer

The correct answer is D) V. The feed water temperature is required to be increased to 165°F or greater, and this temperature must exist when the feed water is leaving the fifth component (V) in the illustration GS-0053. This is typically the feed water heater, where the feed water temperature is raised to the required level before entering the boiler. The other answer choices are incorrect because they do not represent the component where the feed water must be at the required temperature. Options A, B, and C correspond to earlier components in the system, where the feed water temperature may not yet have reached the necessary 165°F or greater.