The line labeled "E", as shown in the illustration, would be identified as the ______. GS-0175

Correct Answer: Option D — oily bilge water inlet line

Line E represents the primary intake path for the oily bilge water. This line directs the untreated mixture from the bilge pump into the separator's inlet chamber, where the initial separation process begins by allowing heavier water to settle and lighter oil to rise toward the coalescer elements.