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When may you sound the horn? When may you sound the horn?

  • Possible answers:

  • A. To give you right of way

  • B. To attract a friend's attention

  • C. To warn others of your presence

  • D. To make slower drivers move over


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Highway Code rule 112 states:

The horn. Use only while your vehicle is moving and you need to warn other road users of your presence. Never sound your horn aggressively. You MUST NOT use your horn

except when another road user poses a danger.

The function of the horn is to alert other road users to your presence, not to, for example, let people know you are leaving a house.