Clean Diesel Truck Training Test Survey

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

Turn off your engine after 3 minutes.

Wait 15 minutes before turning off your engine.

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

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

Throttle

Turbocharger

Engine Gas Recirculation (EGR)

DEF tank

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

Only when engine problems start

Every two years

At least once a year

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

Drive on the highway several times a day

Park your truck but accelerate the engine

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

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

DPF cleaning

Fluid (oil and coolant) leaks

Exhaust leaks

Over fueling

Running out of DEF fluid

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

Fill out a DPF cleaning history sheet

Inspect the DOC

Inspect the DEF injector

Inspect the SCR cylinder

All of the above

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* 7. Clean diesel truck exhaust leaks:

Are always black

Can be black or other colors

Are never visible

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* 8. The ___________ requires hot temperatures.

DPF system

DEF system

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

The engine can shut down

You might get a flat tire

The DEF Light may turn on

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* 10. 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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* 11. What do you need to do for a Parked Regen?

Set your emergency brake

Turn on the Parked Regen switch

Park in a safe area away from anything that could melt or burn

All of the above

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* 12. 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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* 13. 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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* 14. How often should you check your fluids?

Weekly

Once a day

Twice a day (before and after your work day)

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

Nothing will happen - the lights will eventually turn off

A small problem can turn into a big problem

You will need to refuel in the next hour

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* 16. 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

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

True

False

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

DPF system

DEF system

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

True

False

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

DPF system

DEF system