🔍 Key Concepts

• Water separation methods commonly used for diesel fuel (e.g., settling, filtration, centrifuging) • How water behaves in fuel (density difference between water and diesel) • Difference between removing water and just removing solid particles

💭 Think About

• Which option is specifically designed to separate liquids of different densities, like water and diesel, rather than just solids from liquids? • Does using the fuel in the engine actually remove the water from the fuel system, or does it risk damage and poor combustion? • Between heating, straining, and a mechanical separation process, which one is purpose‑built for getting water out of fuel?

✅ Before You Answer

• Identify which choice is meant for liquid–liquid separation rather than liquid–solid separation. • Consider which method would be recommended in engine room fuel treatment systems on larger vessels. • Eliminate any option that would leave water in the system or could harm the engine rather than protect it.