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BDifficulty 2/5

As a technical requirement, what sound must an ordinary motor-vehicle horn emit?

Correct answer

Continuous, uniform and of sufficient intensity.

A continuous, uniform sound of sufficient intensity, under Article 11.7 of the General Vehicle Regulations. This describes the device; it does not authorise holding the horn for a prolonged period. Use must meet permitted circumstances and must not be unjustified or excessive.

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  • Continuous, uniform and of sufficient intensity.

  • A sound that must be held for at least ten seconds whenever used.

  • A sound that must be inaudible to other road users.

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