EXIT Clean Diesel Truck Training Test Test English Español Oromoo Soomaali Русский ਪੰਜਾਬੀ አማርኛ Question Title * 1. When you are having your DPF cleaned or replaced, you should ask the dealer to: Inspect the DOC Inspect the DEF injector Inspect the SCR cylinder Fill out a DPF cleaning history sheet All of the above OK Question Title * 2. Clean diesel truck exhaust leaks: Are always black Are never visible Can be black or other colors OK Question Title * 3. A DPF should be manually cleaned by a qualified mechanic: Only when engine problems start At least once a year Every two years OK Question Title * 4. The DPF is often the first engine part to show a problem even if the cause of the problem is somewhere else in the engine. True False OK Question Title * 5. If you are waiting in line at the port and your truck is not moving, you should: Wait 15 minutes before turning off your engine. Turn off your engine after 3 minutes. Never turn off your engine because it will wear out your engine. OK Question Title * 6. The ___________ tank should be at least ¼ full. DEF system DPF system OK Question Title * 7. If your truck is using more oil than usual, you should: Look for leaks and get them fixed Just add more oil Drive on the highway without stopping for 20 minutes OK Question Title * 8. What can happen if the DPF gets clogged? You might get a flat tire The engine can shut down The DEF Light may turn on OK Question Title * 9. Some exhaust leaks can be identified by listening for them while the engine is running. True False OK Question Title * 10. What do you need to do for a Parked Regen? Park in a safe area away from anything that could melt or burn Turn on the Parked Regen switch Set your emergency brake All of the above OK Question Title * 11. A mechanic should always do a Parked Regen after installing a clean or new DPF. True False OK Question Title * 12. The ___________ must be manually cleaned to remove ash. DEF system DPF system OK Question Title * 13. What are the three major maintenance issues with DPFs? (select three) Running out of DEF fluid Exhaust leaks DPF cleaning Over fueling Fluid (oil and coolant) leaks OK Question Title * 14. Which engine parts does the DPF impact? (select all that apply) Throttle Engine Gas Recirculation (EGR) Turbocharger DEF tank OK Question Title * 15. How often should you check your fluids? Twice a day (before and after your work day) Once a day Weekly OK Question Title * 16. If your DPF Light is blinking, you need to: Drive hard to start an Active Regen or start a Parked Regen in 1-2 hours Fill your DEF tank with DEF fluid Start a Parked Regen immediately OK Question Title * 17. What can you do to help your truck start an Active Regen? Drive on the highway at least 50 miles per hour for 20 minutes without stopping Park your truck but accelerate the engine Drive on the highway several times a day OK Question Title * 18. Mixing different oils in your truck will not harm your engine as long as they are high-quality oils. True False OK Question Title * 19. If you ignore warning lights on your dashboard: A small problem can turn into a big problem Nothing will happen - the lights will eventually turn off You will need to refuel in the next hour OK Question Title * 20. The ___________ requires hot temperatures. DPF system DEF system OK DONE