Practice question What does a white X-shaped railroad crossbuck mean? Yield to crossing trainsStop only if a police officer is nearbyTracks are abandoned and can be ignoredUse the tracks as a passing area Answer: A — Yield to crossing trains The correct answer is shown above. Try the full quiz for additional practice. Practice more: NM Road Signs Practice Practice Questions - New Mexico Driver License Signs, Signals, and Pavement Markings Practice Exam →