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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q532 - Motor Plants II
167. The diesel engine shown in the illustration, which of the lettered parts listed is cooled by sea water
Part W is a shell-and-tube cooler, designed to circulate seawater and remove heat from the engine's oil/fresh-water system. Sea water is confined to heat exchangers to prevent corrosion and scaling within the engine; parts P, Q, and Y are internal components cooled indirectly by lubricating oil or fresh water.
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