When can you use the horn on your vehicle? Select all that apply.

To warn another driver of your presence
To warn a horse and rider you are approaching
If someone cuts you off
As you are leaving your friend's house

In New Zealand, it is very important to use the horn correctly while driving. This is not only to comply with traffic regulations but also to ensure the safety of all road users. According to New Zealand traffic regulations, the correct answer is:

To warn other drivers that your vehicle is approaching or to indicate your position.

The purpose of this rule is to alert other road users through the use of the horn in situations where vehicles cannot be seen directly (such as blind corners or hilly roads) or in emergencies. Doing so can significantly reduce the occurrence of traffic accidents and enhance driving safety.