Practice question A red X lane-control signal over a lane means what? Do not use that laneThe lane is open to all trafficThe lane is a passing lane onlyThe lane is for left turns only Answer: A — Do not use that lane The correct answer is shown above. Try the full quiz for additional practice. Practice more: Oklahoma Road Signs Practice Practice Questions - Oklahoma Written Knowledge Test Road Signs, Signals, and Pavement Markings Practice Exam →