🔍 Key Concepts

• Galvanic corrosion protection in systems exposed to seawater • Purpose and placement of sacrificial zinc anodes (zincs) • Which refrigeration components actually come in contact with seawater

💭 Think About

• Ask yourself: Which of these components has seawater flowing through or around it during normal operation? • Which part of the system would most need protection from corrosion caused by saltwater, rather than from refrigerant alone? • Eliminate any options that only see refrigerant or oil, and no direct seawater contact.

✅ Before You Answer

• Identify which listed component is part of the seawater side of the system, not the refrigerant side. • Confirm that zincs are used to protect metal surfaces in contact with seawater from corrosion. • Verify that strainers, receivers, and evaporator coils in this context primarily handle refrigerant, not seawater.