Delaware Driver Education State Practice Test

The correct answer is that a vehicle's horn must be audible from a distance of 200 feet. This standard ensures that the horn is loud enough to alert nearby pedestrians, cyclists, and other motorists of potential danger or to signal the driver's presence. This regulation is crucial for maintaining safety on the road, especially in urban environments where there may be a lot of noise and distractions. By requiring that the horn be heard from a significant distance, it helps to prevent accidents by giving others enough time to react to the vehicle's presence. Understanding the importance of the horn's audible range reinforces the idea that communication on the road is vital for safety. A horn that is too quiet would not effectively alert others, potentially leading to hazardous situations.