🔍 Key Concepts

• Follow the flow of the working fluid shown by the arrows and identify whether it is liquid or gas at each stage • Notice the large cylindrical receiver tank and the machine on the right that appears to increase pressure • Compare the overall system layout with typical shipboard systems for cargo pumping, refrigeration, air compression, and oily‑water separation

💭 Think About

• What is happening to the fluid as it passes through the machine on the right and then into the large tank — is its pressure being increased, its temperature controlled, or is it being separated from another phase? • Which of the four answer choices normally uses a large receiver tank, intake filter, after‑cooler, and control panel like those labeled in the illustration? • Does this system seem to handle two phases (oil and water), a closed refrigerant loop, or a single gas being stored for later use?

✅ Before You Answer

• Identify whether the arrows at the intake (near label K) show air entering through a filter/silencer rather than liquid being pumped • Look at the large horizontal vessel (label E) and confirm it matches a typical air receiver more than a cargo or bilge tank • Check for a refrigeration condenser/evaporator or an oily‑water discharge line; if those components are missing, rule out the answers that require them.