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BDifficulty 2/5

Acoustic signals must be used...

Correct answer

of a non-strident sound.

Acoustic signals, such as the horn, must be used responsibly and in accordance with traffic regulations. These signals are intended mainly to warn other road users of the vehicle's presence in exceptional situations. It is important that the sound emitted by the horn be uniform and of sufficient intensity to be perceived by other users, but at the same time, it must not be strident. A strident sound could be annoying or even dangerous, as it could cause a startled reaction or confusion.

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  • of a very high-pitched sound.

  • of any sound.

  • of a non-strident sound.

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