When a vehicle becomes disabled on the roadway, which combination of chocks and flares is required?

When a vehicle becomes disabled on the roadway, which combination of chocks and flares is required?

• A. one chock block, and 2 flares or safety triangles
• B. one pair of chock blocks and 3 flares or safety triangles
• C. two pairs of chocks and 2 flares
• D. four flares or safety triangles and one chock block

Answer: (B)

When a vehicle is disabled on the roadway, you must both secure the vehicle and warn other drivers. Use a pair of chock blocks to prevent movement of the wheels and place three flares or safety triangles to alert approaching traffic. A single chock wouldn’t fully secure the vehicle, and three signals provide the minimum warning coverage needed while the other options either shortchange the number of signals or the securing method. So the required combination is a pair of chock blocks and three flares or safety triangles.

When a vehicle is disabled on the roadway, you must both secure the vehicle and warn other drivers. Use a pair of chock blocks to prevent movement of the wheels and place three flares or safety triangles to alert approaching traffic. A single chock wouldn’t fully secure the vehicle, and three signals provide the minimum warning coverage needed while the other options either shortchange the number of signals or the securing method. So the required combination is a pair of chock blocks and three flares or safety triangles.