What is the required distance to signal before making a turn in a commercial vehicle?

Answer: C — At least 100 feet

The requirement to signal at least 100 feet before making a turn in a commercial vehicle is in place to ensure safety and provide adequate notice to other drivers and pedestrians. This distance gives those around the vehicle enough time to react to your intentions, which is especially important for larger vehicles that have a larger blind spot and take longer to maneuver compared to standard cars. By signing at least 100 feet before turning, drivers are creating a clear communication about their movements on the road, which helps to prevent accidents and enhances overall traffic flow. This standard is particularly crucial in commercial driving, where the size and weight of the vehicle can significantly impact the ability to stop or change directions quickly, making advance notice even more critical.