In order for all of the bilge pump discharge...

Question 1 of 270705eccef9abacbc34ba4d450f9

In order for all of the bilge pump discharge to pass through the oily water separator, shown in the illustration, the oily water separator bypass valve must be __________. See illustration GS-0042.

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Question 1 of 27070

In order for all of the bilge pump discharge to pass through the oily water separator, shown in the illustration, the oily water separator bypass valve must be __________. See illustration GS-0042.

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🔍 Key Concepts

• Oily water separator (OWS) normal operating flow path • Purpose of a bypass line/valve in any piping system • MARPOL/USCG requirements that bilge water discharged overboard must pass through the OWS under normal conditions

💭 Think About

• Trace the bilge pump discharge line on the GS-0042 diagram and note where the flow can go if the bypass valve is open versus closed. • Ask yourself: if I want to guarantee that 100% of the flow goes through the separator, should the bypass line be available as a path, or isolated? • Consider what the words completely, cracked open, and throttled imply about whether fluid can still flow through a bypass.

✅ Before You Answer

• Verify which line on the drawing is labeled as the bypass around the oily water separator and where it leads. • Confirm which valve position removes the bypass as a possible flow path so that the only route to overboard is through the OWS. • Make sure you are not confusing the OWS inlet/outlet valves with the separate bypass valve shown on the schematic.