School Bus CHP Practice Test 2025 - Free School Bus Certification Practice Questions and Study Guide

Using the horn to warn pedestrians and other drivers is essential for safety on the road, especially in the context of a school bus. The primary purpose of the horn is to alert others to potential hazards or the presence of the bus, particularly in situations where visibility may be limited or when other vehicles might not be aware of the bus's presence. This is especially important during school hours when children are present and may be crossing the street or waiting near the bus stop.

In contrast, using the horn to signal students to board or to alert students at bus stops might create confusion and lead to unsafe behaviors, such as students rushing to the bus. Communicating with other bus drivers using the horn is also not a standard practice and can lead to misunderstandings. Thus, the appropriate and safest use of the horn is primarily to warn others in order to prevent accidents and ensure everyone is aware of the bus's movements.