Driving theory questions
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Which statement is true regarding the gas carbon dioxide?
Review of the options:
- Carbon dioxide is an unnatural gas that is only formed during the burning of fossil fuels.
– False, carbon dioxide is also formed during the burning of wood, for example. - Carbon dioxide contributes to the greenhouse effect.
– True, carbon dioxide is a greenhouse gas, see the pictures below. - Carbon dioxide has been a major problem in the past, but the catalytic converters in new cars filter out all carbon dioxide.
– False, the catalytic converter’s major problem is that it cannot convert carbon dioxide. - Carbon dioxide is the only substance that an effective catalytic converter emits.
– False, the catalytic converter also emits other substances, mainly water.
Normal greenhouse effect
The rays of the sun (yellow arrows) pass through the atmosphere (grey line) and reach the earth. Much of the heat is absorbed (red dots) and the excess bounces off the earth’s surface and is reflected back out into space (red arrows).
Enhanced greenhouse effect
The car releases emissions into the atmosphere, which makes it thicker. When the atmosphere gets thicker, some of the heat rays reflected back from the surface cannot get through. These rays instead bounce back towards the earth while emitting more heat. In other words, the earth is getting warmer than it otherwise would.
Useful links:
- The greenhouse effect (Körkortonline.se)
- Pollutants (Körkortonline.se)
- Catalytic converter (Körkortonline.se)
Körkortonline.se offers driving licence theory tests. This is an example of an explanation of a test question. English theory test (free demo), Swedish theory test (free demo) and Arabic theory test (free demo).
More examples of explanations:
- You are driving the car from which the photo is taken and you want to turn into the small road on the right. Which statement is true?
- Is it permitted to park directly after a pedestrian crossing?
- What rule applies at the next junction?
- Who is obliged to give way if another car comes from the road on the right?
- Which month has the highest number of pedestrian deaths in traffic?
- What is the reaction distance?
- What do these road signs mean?
- What should you do if you are driving in a waterlogged lane?
- You have a car made in 2014 and the last inspection was 4 April 2020. When are you required to inspect it again?
- Who can use a public transport lane located on the right in the direction of travel?
- Is it permitted to allow a child under 3 years old to travel in a taxi without a child safety seat?
- What do the red figures at the bottom of the additional panel mean?
- What rules apply to the bus stop in the picture provided that no bus comes?
- You are visiting a city and planning your parking for tomorrow, which is Wednesday, 1 May (national holiday). Which statement is true?
- What is true for young men with a driving licence?
- How much of the visual field is made up of peripheral vision?
- Do school traffic wardens (children) have the right to stop traffic at pedestrian crossings?
- What is the limit for drunk driving?
- Can you drive past a traffic accident where a rescue operation is already on the scene?
- You are driving the vehicle from which the pictures are taken. In what situation are you obligated to give way to traffic coming from the right?
Category:
- Driving theory questions: Vehicle
- Driving theory questions: Environment
- Driving theory questions: Traffic safety
- Driving theory questions: Traffic regulations
- Driving theory questions: Individual circumstances
- Driving theory questions: Road signs
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