What may be the effect of wrong adjustment of low-beam lights?
Show the correct answer
Correct answer
B. Deterioration of road visibility at night.
Explanation
Incorrectly adjusted dipped headlights may make it harder to see the road at night - answer B. The adjustment of the headlights has no effect on fuel consumption (A) or on the wear of bulbs (C).
The Regulation on the technical conditions of vehicles requires dipped headlights to light the road well enough for at least 40 m in front of the vehicle, to be asymmetrical, to give a clear line between light and shadow and not to dazzle others. A headlight aimed too low lights only a dozen or so metres of asphalt in front of the bonnet - at 90 km/h this is less than one second of driving, too little to see a pedestrian or an obstacle. A headlight aimed too high, on the other hand, dazzles drivers coming from the opposite direction. The adjustment goes wrong after changing a bulb, after a minor collision or after loading the boot; the headlight levelling control inside the car lets you lower the beam when the car is fully loaded, and the exact adjustment is done at the technical inspection.
Legal basis: § 13 para. 1 point 4 and 5 and Annex No. 6 to the Regulation on the technical conditions of vehicles and the scope of their necessary equipment; Art. 19 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)