Rijbewijs C - vakbekwaamheid - English - Milieuvriendelijk rijden - Ecofriendly driving

Which statement about air resistance is correct?

A. A wider cab experience more air resistance than a narrower one.
B. A higher cab experience more air resistance than a lower one.
C. Air resistance does not depend only on width and height.

What is the unit of torque?

A. Hp (horsepower)
B. Nm (newton meter)
C. kW (kilowatt)

Which statement about tire pressure is correct?

A. Tire pressure has only a small effect on rolling resistance.
B. Higher tire pressure has only positive effects.
C. Higher tire pressure can both decrease and increase rolling resistance.

Which statement about hill resistance of a vehicle is correct?

A. Hill resistance is only determined by the slope of the road.
B. Hill resistance is determined by the slope of the road and the condition of the road surface.
C. Hill resistance is determined by the mass of the vehicle and the slope of the road.

Does speed affect a vehicle's air resistance? Which statement is correct?

A. Speed has no influence on air resistance.
B. When speed increases, air resistance increases slightly.
C. When speed doubles, air resistance becomes four times as large.

What is the best way to drive uphill?

A. Keep both speed and engine speed more or less constant.
B. Keep the engine speed more or less constant.
C. Keep only the speed more or less constant.

What is the mechanical resistance of a vehicle?

A. The resistance the engine experiences from the rotating parts in the transmission.
B. The resistance of rotating parts in the engine experience.
C. The resistance the rotating parts in the engine and transmission experience.

Why should you keep your vehicle in gear as long as possible when approaching a red traffic light?

A. Because less fuel is injected when braking in gear.
B. Because the engine uses no fuel until the truck comes to a stop and the engine runs idle.
C. Because fuel consumption gradually decreases while the engine stays at temperature.

What happens to fuel consumption it tire pressure is 0.5 bar lower than recommended?

A. Decreases
B. Stay the same
C. increases

Which statement about energy-efficient driving is correct?

A. An energy-efficient driving style reduces average speed.
B. An energy-efficient driving style reduces fuel consumption but increase emissions.
C. An energy-efficient driving style increases driving comfort for the driver.

While refueling, you notice that the tire pressure of the right front tire seems insufficient. Why is that important?

A. Correct tire pressure makes the truck easier to steel, increases load stability, and extend tire life.
B. Low tire pressure causes higher fuel consumption and abnormal heating of the tires, with a risk of blowout.
C. All of the above reasons are important.

What is the advantage of driving with correct tire pressure?

A. Better road holding.
B. More grip on a wet road.
C. Less air resistance.

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

1. What has the greatest influence on fuel consumption?

A. Tire pressure
B. Type of tire
C. Wet or dry road surface

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

2. What reduces fuel consumption?

A. Driving in a low gear.
B. Driving in the green zone of the tachometer (maximum torque)
C. Frequently changing gears.

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

3. What is the effect of too low tire pressure?

A. Lower fuel consumption.
B. Higher fuel consumption.
C. The same fuel consumption.

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

4. What has little or no influence on fuel consumption?

A. The distribution of the load.
B. Use of the air conditioning (climate control)
C. Driving with a clean air filter.

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

5. How can you save on maintenance and repair costs?

A. By only using engine braking.
B. By adopting a sporty driving style.
C. By adopting an energy-efficient driving style.

CASE 1

You are driving a fully loaded truck with a closed body on the highway in the rain. The vehicle has six-cylinder inline diesel engine. The maximum power is 353kW (480hp) and is reached at 1900 rpm. The maximum torque of 2300 Nm is reached between 1100 and 1300 rpm.

6. What should you do while driving?

A. Look at the dashboard and indicator lights if the engine makes an unusual sound.
B. Drive as fast as possible without committing an offense.
C. Regularly check the dashboard and indicator lights.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

1. Why should you check the truck before departure?

A. That is safer.
B. It is safer and more environmentally friendly to drive a well-maintained truck.
C. It is not required, but it is allowed and customer-friendly.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

2. Which brake do you use when descending a long hill?

A. The service break: to better control braking force.
B. The engine brake and retarder: to prevent overheating of the brakes.
C. ABS: to prevent excessive tire wear.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

3. You need coolant but don't have any available. What are you allowed to use?

A. Distilled water (or rainwater)
B. Any liquid temporarily
C. Only coolant of the same brand and composition.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

4. During the trip, the temperature warning light comes on. What do you do?

A. Continue driving another 20 km to the planned stop.
B. Stop as soon as possible in a safe place and check the coolant level.
C. Immediately add coolant.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

5. While driving, you notice the brake pressure gauges show insufficient air pressure. Which statement is correct?

A. You may continue driving another 20 km to the planned stop.
B. It is caused by the engine running too slowly.
C. You must stop the vehicle immediately in a safe place.

CASE 2

You are driving a tractor-trailer with a maximum authorized mass (MTM) of 40,000 kg. You are driving on the highway at 90km/h. It is sunny and fairly quiet a six-cylinder inline diesel engine. Fuel consumption is around 24 L/100 km.

6. What do you do if brake air pressure is too low?

A. Compensate by braking faster and longer.
B. Stop to locate the leak.
C. Do nothing if no green indicator light is on.

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

1. How should wheel nuts be tightened when changing a wheel?

A. One by one in a clockwise direction.
B. Crosswise (diagonally)
C. In random order.

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

2. What is the average stopping distance of a truck driving 90 km/h?

A. 40 to 50 meters
B. 80 to 90 meters
C. 110 to 120 meters

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

3. On the highway, you must brake for an accident 200 meters ahead. Another truck is following you at 40 meters. What do you do?

A. Immediately use the handbrake to stop as quickly as possible.
B. Immediately switch on all indicators (hazard lights) and start braking once the truck behind you adjusts speed.
C. Use the hand shoulder to avoid the accident without braking.

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

4. What should you use when driving up a steep hill?

A. The engine power.
B. The engine torque.
C. The inertia of the trailer.

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

5. Must a driver be able to perform an emergency stop at any time?

A. Yes
B. No
C. Only if there is enough space around the vehicle.

CASE 3

You are driving a tractor-trailer with a semi-automatic gearbox. You are making a trip from Liège to Bergen via the highway. It is raining. During a check of the vehicle during a break, you notice a tire is damaged.

6. What does the electronic gearbox control do?

A. It prevents excessive fuel consumption.
B. It prevents overheating of the brakes.
C. It prevents driving too fast.