Driving theory questions

You are driving a car at 70 km/h. What is true about the noise that arises?

  • Incorrect: The engine will most often cause more noise than the tyres.
  • Correct: The tyres will most often cause more noise than the engine.
  • Incorrect: There is no difference in noise level between the engine and the tyres.

At low speeds, the sound of the engine and exhaust system dominate, while the noise of tyres and road take over at higher speeds. For private cars, the limit lies at approximately 30–50 km/h and for heavy vehicles at 50–70 km/h.” (Swedish Transport Administration)


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