Question 195Motor Plants - 1st Asst/Chief

The correct answer is A) waste heat boiler circulating pump. This is the correct answer because the component labeled 'E' in the illustration MO-0128 is responsible for circulating the heated water from the waste heat boiler, which is a common component in marine propulsion systems. The waste heat boiler uses the hot exhaust gases from the main engine to generate steam or hot water, and the circulating pump ensures proper circulation of this heated fluid. The other answer choices, such as a boiler water feed pump, main condensate pump, or fuel oil service pump, do not match the function described by the 'E' label in the given illustration.