Driving licence test
What is infrasound in the context of traffic?
“Road traffic produces [...] and inaudible sound, i.e. infrasound.” (Driving Licence Book, 19th Edition, page 228)
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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).
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Category:
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