🔍 Key Concepts

• Salt-Water Service Pump suction and discharge lines on the DEEP DRILLER piping diagram • Proper valve lineup for filling a specific tank (Tank 1P) from a particular pump • How valve numbers on the exam diagram correspond to line direction, branch points, and isolation valves

💭 Think About

• Trace the flow from the Salt-Water Service Pump discharge toward Tank 1P on the piping diagram and identify every valve in that path. • Ask yourself which valves MUST be open for water to reach Tank 1P, and which valves, if opened, would instead send water to another tank or overboard. • Check whether the valve in the correct path is a branch, isolation, or overboard valve, and whether opening it would prevent or allow flow to Tank 1P.

✅ Before You Answer

• Verify on the diagram which side of each numbered valve (33, 36, 46, 48) is connected directly or indirectly to Tank 1P. • Confirm that the chosen valve is on the discharge side of the Salt-Water Service Pump, not on a suction or unrelated line. • Make sure that opening the chosen valve does not divert flow away from Tank 1P to another destination such as another tank or overboard.