Driving licence test
What is infrasound in the context of traffic?
The options are not shown, since this is one of the 1000 paid questions.
Buy all 1000 questions now
“Road traffic produces [...] and inaudible sound, i.e. infrasound.” (Driving Licence Book, 19th Edition, page 228)
This is an example of one of the driving theory questions at Körtkortonline.se. There are two languages: English (free demo test), Swedish (free demo test)
There is also a driving licence book online (2026).
More examples of theory questions:
- Is it possible to reduce the soot and particle emissions of a diesel vehicle?
- Is it true that when driving, you should have a distance of at least 25 cm between you and the steering wheel airbag?
- What is the total weight of the car if the driver weighs 75 kg, the maximum load is 500 kg and the unladen weight is 1,300 kg?
- About how much carbon dioxide does an average car in Sweden emit each year?
- Could you be obliged to reduce your speed in order to increase your distance from the white car driving ahead of you?
- How fast are you allowed to drive in a light lorry?
- How fast is a private car towing a caravan allowed to drive?
- You intend to continue straight ahead. How should you position your vehicle when you pass the junction?
- How fast may a class I moped (EU moped) drive?
- Which statement is true with regard to the person who intends to use the pedestrian crossing?
- You are slowly approaching the junction in car A and wish to continue straight ahead. What should you do?
- What is the basic speed limit in a densely populated area?
- What is the basic speed limit outside of a densely populated area?
- When is the clear height considered sufficient so that this type of prohibitory sign is not erected?
- Which vehicle is, or which vehicles are, parked illegally?
- What is true regarding vehicle inspection (roadworthiness test)?
- Which statement is true regarding priority roads?
- Which option is an example of environmentally friendly driving?
- You have a car made in 2014 and the last inspection was in June 2020. When are you required to inspect it again?
- When is a car that was inspected for the first time on 14 September 2019 to undergo inspection again?
Category:
- Driving licence test: Vehicle
- Driving licence test: Environment
- Driving licence test: Traffic safety
- Driving licence test: Traffic regulations
- Driving licence test: Individual circumstances
- Driving licence test: Road signs



