NC CDL General Knowledge Practice Test

Limiting the use of your horn while driving is primarily advised because honking can startle other drivers. The unexpected loud sound can cause a driver to panic or make sudden movements, potentially leading to accidents. The horn is intended for clear communication regarding safety circumstances—such as alerting another driver of your presence or warning of an impending danger. However, overusing it in non-emergency situations can lead to confusion and increased stress on the road. Contextually, while distractions and noise pollution are valid concerns, the immediate and potentially dangerous effects of startling other drivers are more significant. Emergency vehicles are indeed signaled using honks, but this falls under the proper use of the horn for safety rather than the general advice on limiting its use in everyday driving scenarios.