Class C -7- Engine - Level 2 | Führerschein Österreich

Class C -7- Engine - Level 2

2 of 3 Levels

1 / 15

Category: Class C -7- Engine - Level 2

You are driving a truck with a diesel engine and notice that blue smoke is coming from the exhaust. What causes can this have?

The main engine gasket could have become defective. Diesel fuel is entering the combustion chamber

The cylinder head gasket could have become defective. Coolant is entering the combustion chamber

The main engine gasket could have become defective. Engine oil is entering the combustion chamber

The oil scraper rings could have become defective. Engine oil is entering the combustion chamber

2 / 15

Category: Class C -7- Engine - Level 2

You need to top up engine oil in your truck. What do you observe?

I make sure not to overfill with engine oil

I make sure that no engine oil gets into the soil or sewage system

I only use engine oil with the specification listed in the truck's operating manual

I may top up with any commercially available engine oil as long as it is suitable for diesel engines

3 / 15

Category: Class C -7- Engine - Level 2

You are refueling a truck with diesel fuel. What do you pay attention to?

That no diesel fuel gets into the soil

That no diesel fuel gets into the sewage system

That no winter diesel is filled in summer

That I should wear suitable gloves

4 / 15

Category: Class C -7- Engine - Level 2

You are driving a truck with a diesel engine in midsummer and notice that white smoke is coming from the exhaust. How should you behave?

I turn off the engine

I continue until the end of the workday

I stop as soon as possible at a suitable location

After stopping, I read in the truck's operating manual what behavior rules are provided for this case

5 / 15

Category: Class C -7- Engine - Level 2

Your truck is equipped with an AdBlue tank. What problems can you expect depending on the truck if you don't refill AdBlue in time?

The engine cannot be started again after being turned off

The engine immediately stalls

The particulate filter is no longer supplied with exhaust gas

The engine can be severely limited in its power by the electronic control

6 / 15

Category: Class C -7- Engine - Level 2

Your truck is equipped with an AdBlue tank. How can you recognize that AdBlue needs to be refilled?

By a separate fuel gauge for AdBlue on the dashboard

By the AdBlue pressure gauge on the dashboard

By blue exhaust smoke

By a warning light

7 / 15

Category: Class C -7- Engine - Level 2

You need to top up antifreeze for your truck's engine coolant. What do you observe?

I must not mix a blue or green colored antifreeze with a red colored one because otherwise damage to the cooling system could occur

I wear safety glasses and protective gloves because antifreeze is toxic

I make sure that no antifreeze gets into the soil or sewage system because antifreeze is toxic

I only use antifreeze with the specification listed in the truck's operating manual, because otherwise damage to the cooling system could occur

8 / 15

Category: Class C -7- Engine - Level 2

Which fluids of a truck need antifreeze in cold weather?

The transmission oil

The washer fluid for the windshield washer system

The battery fluid

The engine coolant

9 / 15

Category: Class C -7- Engine - Level 2

You are driving a truck with a diesel engine in midsummer and notice that white smoke is coming from the exhaust. What causes can this have?

The cylinder head gasket could have become defective. Coolant is entering the combustion chamber

The main engine gasket could have become defective. Diesel fuel is entering the combustion chamber

The oil scraper rings could have become defective. Engine oil is entering the combustion chamber

The main engine gasket could have become defective. Engine oil is entering the combustion chamber

10 / 15

Category: Class C -7- Engine - Level 2

How can you recognize malfunctions in your truck's engine cooling system while driving?

By the temperature gauge

By a corresponding display on the on-board computer

By a warning buzzer

By the failure of the air conditioning system

11 / 15

Category: Class C -7- Engine - Level 2

You are driving a truck with a diesel engine and notice that black smoke is coming from the exhaust. How should you behave?

After stopping, I read in the truck's operating manual what behavior rules are provided for this case

I observe the indicators for malfunctions of the electronic engine control

I observe the indicators for contamination of the engine air filter

I stop as soon as possible at a suitable location and turn off the engine

12 / 15

Category: Class C -7- Engine - Level 2

What do you check on your truck's engine cooling system?

The temperature of the coolant with the temperature gauge

The coolant level in the expansion tank

The speed of the coolant pump with the tachometer

The speed of the cooling fan with the tachometer

13 / 15

Category: Class C -7- Engine - Level 2

Which of the following technical devices reduce pollutant and particle emissions in diesel engines?

Selective catalytic reduction (SCR)

Exhaust gas recirculation (EGR)

The glow spiral

Particulate filters

14 / 15

Category: Class C -7- Engine - Level 2

Your truck is equipped with an SCR system to reduce pollutant emissions. Which operating fluid is necessary for proper operation of this system?

AdGreen

AdRed

AdYellow

AdBlue

15 / 15

Category: Class C -7- Engine - Level 2

You are driving a truck with a diesel engine and notice that blue smoke is coming from the exhaust. How do you behave?

I observe the indicators for the oil pressure of the engine lubrication

I stop as soon as possible at a suitable location and turn off the engine

I continue until the end of the workday

I read in the truck's operating manual what behavior rules are provided for this case

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Class C -7- Engine – Level 2