Idaho Written Driver's License Practice Test

When must headlamps and taillights be lighted?

1. From sunrise to sunset

2. Sunset to sunrise and when visibility is poor

3. Only during night driving

4. Only in bad weather conditions

The correct answer is: Sunset to sunrise and when visibility is poor

The correct response indicates that headlamps and taillights must be illuminated from sunset to sunrise and also in situations where visibility is poor. This rule is crucial for ensuring safety on the road, as proper lighting helps drivers see and be seen, especially in low-light conditions. During nighttime, headlights are essential for illuminating the road ahead, enabling drivers to spot obstacles, pedestrians, or other vehicles in time to react appropriately. Additionally, tail lights are vital for signaling your presence to vehicles behind you, which is crucial for preventing rear-end collisions. The requirement for lights to be on in poor visibility conditions, such as fog, heavy rain, or snow, is equally important. When visibility is compromised, using headlights enhances your ability to see the road and helps other drivers notice your vehicle sooner, which can prevent accidents. Other options suggest limited instances for when lights should be used, which would not adequately account for the need for visibility in varying driving conditions. Thus, the proper understanding is that the use of headlamps and taillights is essential for safety from sunset to sunrise and whenever visibility is hindered.