You should use your horn when:

A vehicle is approaching in your lane in the opposite direction.
You get frustrated.
Pedestrians cross without looking.
The traffic signal turns green but the vehicle in front doesn't move.
Explanation

Avoid using your horn unless it’s absolutely necessary to prevent a collision. For instance, use your horn-and flash your headlights-if a vehicle is drifting into your lane and heading toward you. This alerts the other driver and may help prevent a crash.

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🟡 This question is moderately difficult23.4% of our users answer it incorrectly.

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