🔍 Key Concepts

• Diesel fuel system components such as tanks, strainers, filters, and injection pumps • Effects of water contamination in fuel on diesel engine starting and injection • Proper remedial actions vs. temporary or unsafe starting methods

💭 Think About

• Which option directly removes water from the parts of the fuel system that actually supply fuel to the engine? • Which options are risky or unrelated to fixing the root cause (water in fuel) and instead just try to force the engine to turn or start? • Think about the normal sequence a diesel fuel supply follows from tank to injector—where would water likely collect, and how is it usually removed?

✅ Before You Answer

• Make sure the action deals specifically with the fuel system, not just the cylinders or turning gear. • Avoid choices that introduce additional hazards (like volatile starting aids) instead of correcting the contamination. • Confirm that the chosen step is a standard maintenance/start-up procedure for clearing water from diesel fuel systems.