When turning right with a long vehicle or combination truck-trailer, what should you do if you cannot remain in your lane?

Answer: B — Approach about 4 feet from the curb or right edge of the roadway and complete the turn in the center of the street

When turning right with a long vehicle or combination truck-trailer and unable to remain in your lane, the best practice is to approach about 4 feet from the curb or right edge of the roadway and complete the turn in the center of the street. This technique is essential for ensuring safety and maintaining control of the vehicle while making the turn. Long vehicles require a wider turning radius, and staying closer to the curb aids in preventing the trailer from hitting obstacles such as curbs, pedestrians, or parked vehicles. By positioning the front of the vehicle closer to the edge while allowing the trailer to swing in towards the center, you can achieve a safer and more effective maneuver. Completing the turn in the center of the street minimizes the risk of the trailer cutting into other lanes or striking objects on the roadside. This approach helps avoid making hasty decisions and risking an accident, which could occur if the turn is rushed or miscalculated. The methods of driving into oncoming traffic or calling for assistance do not address the immediate need to safely navigate the turn, and making the turn as quickly as possible may lead to loss of control and compromise safety. Thus, maintaining proper vehicle positioning and control is crucial in these situations.