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Difficulty: HardDriving in Fog and Reduced Visibility

When driving in dense fog during daylight hours, operating a vehicle with automatic Daytime Running Lights (DRLs) fulfills mandatory reduced-visibility lighting laws without needing to manually switch on low-beam headlights.

Answer: Answer

Answer

The statement is false. Daytime Running Lights (DRLs) do not activate rear tail lights, so drivers must manually turn on low-beam headlights when driving in fog.
The correct evaluation is that the statement is false. Daytime Running Lights (DRLs) operate only front lights and do not turn on rear tail lights. Under DMV regulations, drivers must manually turn on low-beam headlights during fog so that both front headlights and rear tail lights are illuminated, making the vehicle visible to traffic from all directions.

Step-by-Step Solution

1
Identify vehicle lighting functions under reduced visibility conditions.
Daytime Running Lights (DRLs) provide low-intensity forward lighting but do not illuminate rear tail lights.
DRLs are designed primarily to improve vehicle contrast in clear daylight, not to illuminate the road or mark the vehicle's rear in low-visibility environments.
2
Apply traffic safety laws regarding fog driving.
Traffic safety regulations mandate low-beam headlights whenever visibility is severely restricted by fog, rain, or mist.
Low-beam headlights activate both front headlights and rear tail lights, ensuring 360-degree visibility to other motorists.
3
Evaluate the statement's accuracy.
The statement claims DRLs fulfill mandatory lighting requirements without activating low-beam headlights, which is false.
Relying solely on DRLs in fog leaves the rear of the vehicle dark, creating a severe collision hazard for trailing drivers.

Key Concept

Low-Beam Headlight and Rear Tail Light Requirements in Reduced Visibility
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Topics

Driving in Fog and Reduced Visibility

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