Minnesota Blue Card Practice Test

Turn signals must be on at least how many feet before a turn?

1. 50

2. 100

3. 150

4. 200

The correct answer is: 100

The requirement to have turn signals on at least 100 feet before making a turn is established to ensure safety and clear communication with other drivers. This distance allows sufficient time for surrounding vehicles and pedestrians to perceive the driver's intention to turn, which can help prevent accidents. By signaling ahead of time, drivers can alert others to their upcoming maneuver, providing a buffer for reactions and adjustments. While shorter distances, such as 50 feet, may not adequately signal your intention to others on the road who may be further away, a 100-foot distance strikes a good balance, allowing for timely warnings without overly complicating driving dynamics. The other options suggest longer distances that may be unnecessary in typical urban or suburban driving conditions, where 100 feet is generally deemed sufficient for most scenarios.