Virginia CDL General Knowledge Practice Test

Using high beams is appropriate at night on unfamiliar roads with no oncoming traffic because it provides increased visibility, allowing drivers to see further down the road and better identify potential hazards. High beams illuminate a greater area and distance compared to low beams, making it easier to navigate poorly lit or unmarked roads. This situation allows for safe use of high beams since there are no oncoming vehicles that could be blinded by the bright light, and the driver can make full use of the enhanced visibility to stay safe. In contrast, using high beams in heavy traffic can create glare for other drivers, increasing the risk of accidents. During foggy conditions, high beams can reflect off the moisture in the air, reducing visibility rather than enhancing it. Driving in urban areas often involves more streetlights, and using high beams would not be necessary and could be disruptive to other drivers.