Texas Driver's License Knowledge TestSafe Driving PracticesEasy
A driver is preparing to drive at night. Which of the following factors is most likely to reduce their visibility and increase the risk of a collision?
- AUsing high beams when there is no oncoming traffic.
- BDriving with clean headlights and windshield.
- CDriving with dirty headlights and a dirty, smudged windshield.
- DDriving at a speed that allows stopping within the range of their headlights.
Show answer & explanationAnswer & explanation
Correct answer: C. Driving with dirty headlights and a dirty, smudged windshield.
Dirty headlights significantly reduce the amount of light projected onto the road, and a dirty or smudged windshield scatters light, creating glare and reducing the driver's ability to see clearly, especially at night. These conditions directly impair visibility more than any other option.
Why the other options are wrong
- A. Using high beams when appropriate improves visibility and is a safe practice.
- B. Clean headlights and windshield improve visibility, reducing risk.
- D. Adjusting speed to headlight range is a safe driving practice at night.
Night Driving Visibility
Maintaining clear vision is crucial for safe night driving, as reduced light naturally limits what a driver can see.
- Headlights illuminate the path ahead.
- Windshield provides the driver's view of the road.
- Dirt and smudges on either can severely impair visibility.
Memory trick: Clean lenses, clear night, safe drive.