Texas DPS Class C Road Rules Practice Test

The correct answer highlights the importance of safety and visibility for all road users. It mandates that the lights on your vehicle must be turned on whenever visibility is reduced to less than 1,000 feet, regardless of the time of day. This includes conditions such as fog, heavy rain, or any other situation that impairs visibility.

Having your lights on in low visibility conditions ensures that your vehicle is more visible to other drivers and pedestrians, thereby reducing the risk of accidents. Additionally, turning on your lights in these conditions serves to alert others to your presence, which is crucial for the safety of everyone on the road.

While it’s true that lights should also be on at sunset or during rain, this answer encompasses a broader range of situations, making it the most appropriate response. It specifically addresses the critical ability to judge visibility, which can fluctuate due to various environmental factors.