When must you switch high-beam lights to low-beam lights?
Show the correct answer
Correct answer
B. Always when there is a possibility of blinding the driver of the car in front of you.
Explanation
You must switch from main beam to dipped headlights whenever there is a possibility of dazzling the driver of the vehicle in front - answer B. Simply seeing a car in front of you (A) is not enough if it is very far away, and a single pedestrian on the roadway (C) is not mentioned in the rule; the obligation concerns pedestrians in a column.
The Road Traffic Act states that a driver using main beam must switch to dipped headlights when a vehicle is approaching from the opposite direction, when approaching a vehicle in front if its driver may be dazzled, and when approaching a rail vehicle or a water transport vehicle moving a short distance away. Main beam reflected in the mirrors of the car in front of you dazzles its driver just as much as headlights from the opposite direction. That is why, when you catch up with someone on a dark road, you switch to dipped headlights and keep your distance, and you go back to main beam only after overtaking.
Legal basis: Art. 51 para. 3 point 2 of the Road Traffic Act (Prawo o ruchu drogowym)