Clean Diesel Truck Training Test Survey

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* 1. If your DPF Light is blinking, you need to:

Fill your DEF tank with DEF fluid

Start a Parked Regen immediately

Drive hard to start an Active Regen or start a Parked Regen in 1-2 hours

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* 2. Some exhaust leaks can be identified by listening for them while the engine is running.

True

False

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* 3. What are the three major maintenance issues with DPFs? (select three)

Over fueling

DPF cleaning

Fluid (oil and coolant) leaks

Exhaust leaks

Running out of DEF fluid

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* 4. 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

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* 5. A mechanic should always do a Parked Regen after installing a clean or new DPF.

True

False

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* 6. Clean diesel truck exhaust leaks:

Are always black

Are never visible

Can be black or other colors

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* 7. The ___________ must be manually cleaned to remove ash.

DEF system

DPF system

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* 8. What can happen if the DPF gets clogged?

The DEF Light may turn on

The engine can shut down

You might get a flat tire

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* 9. The ___________ requires hot temperatures.

DPF system

DEF system

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* 10. If your truck is using more oil than usual, you should:

Drive on the highway without stopping for 20 minutes

Look for leaks and get them fixed

Just add more oil

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* 11. When you are having your DPF cleaned or replaced, you should ask the dealer to:

Inspect the DOC

Inspect the DEF injector

Fill out a DPF cleaning history sheet

Inspect the SCR cylinder

All of the above

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* 12. 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

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* 13. A DPF should be manually cleaned by a qualified mechanic:

Every two years

At least once a year

Only when engine problems start

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* 14. Which engine parts does the DPF impact? (select all that apply)

Throttle

Engine Gas Recirculation (EGR)

Turbocharger

DEF tank

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* 15. Mixing different oils in your truck will not harm your engine as long as they are high-quality oils.

True

False

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* 16. If you ignore warning lights on your dashboard:

A small problem can turn into a big problem

You will need to refuel in the next hour

Nothing will happen - the lights will eventually turn off

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* 17. What can you do to help your truck start an Active Regen?

Park your truck but accelerate the engine

Drive on the highway at least 50 miles per hour for 20 minutes without stopping

Drive on the highway several times a day

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* 18. If you are waiting in line at the port and your truck is not moving, you should:

Turn off your engine after 3 minutes.

Never turn off your engine because it will wear out your engine.

Wait 15 minutes before turning off your engine.

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* 19. How often should you check your fluids?

Weekly

Twice a day (before and after your work day)

Once a day

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* 20. The ___________ tank should be at least ¼ full.

DEF system

DPF system