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Question

Difficulty: EasyNight Driving and Headlight Usage

Which of the following safe driving actions best prevents a driver from overdriving their headlights while traveling on a dark road at night?

  1. Adjusting driving speed so the vehicle can safely stop within the distance visible ahead.Answer
  2. B
    Maintaining the maximum posted daytime speed limit regardless of headlight range.
  3. C
    Keeping high-beam headlights active continuously even when closely following other traffic.
  4. D
    Switching to parking lights to lessen the overall reflection of light off the pavement.

Answer

Adjusting driving speed so the vehicle can safely stop within the distance visible ahead.
Overdriving headlights happens when a vehicle travels faster than the speed required to stop within the clear distance illuminated by its headlights. Lowering speed ensures safe stopping distance within the visible area.

Step-by-Step Solution

1
Identify the definition and danger of overdriving headlights.
Overdriving headlights occurs when a vehicle's stopping distance exceeds the sight distance illuminated by its headlights.
If an obstacle appears at the edge of illuminated visibility, a vehicle traveling too fast will be unable to stop in time.
2
Select the proper control action to mitigate this risk.
Reduce speed until total stopping distance is less than or equal to headlight illumination range.
This allows adequate time and distance for perception, reaction, and braking.

Key Concept

Avoid Overdriving Headlights
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Topics

Night Driving and Headlight Usage

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