Practice question What does a downward green arrow over a lane mean? You may drive in that laneThe lane is about to closeThe lane is closed to your directionOnly left turns are permitted from the lane Answer: A — You may drive in that lane The correct answer is shown above. Try the full quiz for additional practice. Practice more: Nebraska Road Signs Practice Practice Questions - Road Signs, Signals and Pavement Markings Practice for the Nebraska Driver License Knowledge Test Exam →