Lighting and Optical Signals
In which of these situations is the use of the horn (acoustic signal) justified outside built-up areas?
- A To greet an acquaintance
- ✓ To warn of overtaking and avoid a possible accident
- C To express anger at another's manoeuvre
- D To hurry the vehicle ahead at a traffic light
Why this is the correct answer
Use of the horn is only justified to avoid a possible accident, particularly outside built-up areas to warn of an overtaking manoeuvre. It must not be used unnecessarily or to express annoyance.
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