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- First Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q511 - General Subjects I
239. Referring to the illustration, suppose the oily-water separator vessel compound gauge is showing an unusually deep vacuum for operating in the separation processing mode with the separator service pump running. The oil content is 8.3 ppm. What is most likely the cause
A deep vacuum on the oily-water separator vessel gauge, despite normal operation and low effluent oil content, indicates a suction restriction. This is most likely caused by a clogged bilge suction strainer, which obstructs flow to the service pump.
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