Question 338Motor Plants - Assistant Engineer

The correct answer is D) water. In a large, slow-speed, main propulsion diesel engine, the part labeled 'B' in the illustration MO-0003 contains the engine's cooling water system. The cooling water circulates through the engine block and other engine components to absorb the heat generated during the combustion process, preventing the engine from overheating. The other options are incorrect because: A) Exhaust gas would not be contained in this part of the engine. B) Oil would be contained in a separate lubrication system, not the cooling water system. C) Diesel fuel would be supplied to the engine through a separate fuel system, not the cooling water system.