Louisiana Class D Chauffeur's License Practice Test

At nighttime, what should be attached to a load that extends beyond 4 feet?

1. A red light

2. A white light

3. A flashing beacon

4. A caution sign

The correct answer is: A red light

For loads that extend beyond 4 feet at nighttime, a red light should be attached to ensure visibility and safety. The reason for this requirement is primarily to alert other drivers to the presence of an extended load, reducing the risk of accidents. A red light is universally recognized as a warning signal, making it essential for night driving conditions. It effectively communicates potential hazards by being highly visible in low-light situations. In contrast, options such as a white light or a flashing beacon could potentially be confusing or misinterpreted by other road users, as these signals typically indicate different meanings in terms of vehicle movement or approaching traffic. A caution sign generally serves to inform drivers about existing hazards but lacks the specific visibility needed at night compared to a red light. Consequently, using a red light is the most effective way to ensure that extending loads are clearly marked and minimize risks on the road.