Minnesota Blue Card Practice Test 2025 - Free Blue Card Practice Questions and Study Guide

The requirement to use headlights in situations where visibility is diminished is crucial for ensuring safety on the road. Headlights must be activated whenever you cannot see the road clearly from a distance of 500 feet. This distance is established to provide sufficient notice to other drivers about your presence and to enhance your ability to see the road ahead, especially in adverse weather conditions such as rain, fog, or snow, where visibility can significantly decrease.

Using headlights at this distance allows you to navigate safely and makes your vehicle more visible to other road users, reducing the risk of collisions. This guideline is based on the principle of maintaining adequate visibility while driving, which is essential for the safety of all individuals on the road. The other distances indicated in the options are not sufficient to ensure that drivers have adequate visibility and reaction times under poor road conditions.