🔍 Key Concepts
• Fuels leave the refinery in a clean (sterile) condition
• Think about every step in the fuel’s journey after it leaves the refinery: storage, transport, and handling
• Common ways fuel can pick up water, rust, or microbes while being handled
💭 Think About
• List all the places fuel sits or moves through after refining (tanks, pipes, barges, trucks, vessel tanks). Where could dirt, water, or rust enter?
• Ask yourself: Is there anything about only ONE of these locations that would make contamination more likely than the others? Or can more than one step introduce contamination?
• Consider whether limiting contamination risk to just one part of the chain makes sense in real-world operations on ships and in terminals
✅ Before You Answer
• For each option, picture a realistic scenario where water, rust/scale, or microbes could get into the fuel
• Check whether the word "generally" in the stem suggests a single specific location or multiple opportunities for contamination
• Verify whether fuel handling equipment (pumps, lines, tanks) at EACH stage could be a source of foreign material or water