Class C -7- Engine - Level 1 | Führerschein Österreich

Class C -7- Engine - Level 1

1 of 3 Levels

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Category: Class C -7- Engine - Level 1

You want to refuel your truck with bio-diesel fuel. Are you allowed to do this?

No, under no circumstances

Yes, if the truck is not older than 10 years

Yes, if the truck engine is also suitable for AdBlue

Yes, if the truck engine is approved for it

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Category: Class C -7- Engine - Level 1

How can you recognize that bio-diesel fuel is being dispensed at a fuel pump?

By the label "AdBio"

By the green color of the nozzle

By a label. A "B" followed by a number is shown in a square

By a label. An "E" followed by a number is shown in a circle

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Category: Class C -7- Engine - Level 1

What happens in the third work stroke of a diesel engine?

The diesel fuel injected into the engine cylinder ignites there on the spark plug and burns

The diesel fuel injected into the engine cylinder ignites there on the hot air and burns

The exhaust gases created from burning gasoline are expelled into the exhaust for combustion

Diesel fuel is injected into the engine cylinder by an injection nozzle

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Category: Class C -7- Engine - Level 1

What is the purpose of the charge air cooler in a diesel engine?

To reduce coolant temperature

To reduce the temperature of the air drawn into the engine

To reduce the temperature of the engine oil

To increase maximum engine power

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Category: Class C -7- Engine - Level 1

Your truck's diesel engine is equipped with a common-rail injection system. How does this system basically work?

A high-pressure pump continuously maintains high fuel pressure in the distribution rail of the injection system

Injectors as injection nozzles at each cylinder are electrically controlled to precisely inject diesel fuel in the desired amount at the desired time for combustion

An electronic control unit operated with the accelerator pedal controls the injectors

A mechanical pump element supplies each cylinder independently of the other cylinders with diesel fuel

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Category: Class C -7- Engine - Level 1

You are refueling a truck with diesel fuel. Why should you wear suitable gloves?

Because diesel fuel is harmful to health

Because diesel fuel has a strong smell

Because diesel fuel is easily water-soluble

Because diesel fuel adheres to the skin

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Category: Class C -7- Engine - Level 1

What consequences are to be expected if you use summer diesel at low outdoor temperatures?

The engine may run with greatly reduced power output

The engine will not reach operating temperature

The engine may immediately stall after starting

The engine will produce high pollutant emissions

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Category: Class C -7- Engine - Level 1

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

That I should wear suitable gloves

That no winter diesel is filled in summer

That no diesel fuel gets into the sewage system

That no diesel fuel gets into the soil

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Category: Class C -7- Engine - Level 1

In which components of a truck are lubricating oils necessary?

In the drive shaft

In the differential gear

In the gearbox

In the engine

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Category: Class C -7- Engine - Level 1

What are the main differences between summer and winter diesel?

Winter diesel receives additives at the refinery. This keeps it liquid enough down to -20° Celsius so that the fuel filters don't clog

Winter diesel is burned particularly emission-free in the engine by adding AdBlue

Winter diesel prevents the engine from freezing down to -40° Celsius

Winter diesel receives additives at the refinery. This makes it particularly ignitable down to -30° Celsius, which facilitates cold starting

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Category: Class C -7- Engine - Level 1

What happens in the first work stroke of a diesel engine?

A mixture of air and gasoline is drawn in

A mixture of air and diesel fuel is drawn in

Pure air is drawn in

Diesel fuel is drawn in

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Category: Class C -7- Engine - Level 1

What happens in the second work stroke of a diesel engine?

The exhaust gases created from burning gasoline are expelled into the exhaust

The exhaust gases created from burning diesel fuel are expelled into the exhaust

The drawn-in air in the engine cylinder is highly compressed and thereby cools down

The drawn-in air in the engine cylinder is highly compressed and thereby heats up to several hundred degrees

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Category: Class C -7- Engine - Level 1

What are the essential differences between diesel and gasoline engines?

The type of ignition

The size of the compression ratio

The number of work strokes

The type of fuel used

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Category: Class C -7- Engine - Level 1

What is the purpose of the exhaust turbocharger in a diesel engine?

To increase maximum engine power

To reduce coolant temperature

To reduce oil consumption

To increase torque

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Category: Class C -7- Engine - Level 1

What tasks does the injection system of a diesel engine have?

To ensure adequate engine cooling

To ensure adequate engine lubrication

To limit the idle and maximum speed of the engine

To inject the correct amount of fuel at the correct time into the engine cylinders

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Class C -7- Engine – Level 1