Practice question What must you do when a work-zone flagger directs you? Obey the flagger's signalFollow only the posted speed limit signIgnore the flagger if your lane is openProceed only when another driver moves first Answer: A — Obey the flagger's signal The correct answer is shown above. Try the full quiz for additional practice. Practice more: Maine Road Signs Practice Practice Questions - Maine Driver License Knowledge Test Signs, Signals and Road Markings Practice Exam →