Oklahoma Road Sign Practice Test

How road signs are tested in Oklahoma

Road sign questions are part of the Oklahoma written knowledge test (20 multiple-choice questions, 15 right to pass). Know the signs well and those questions become easy points.

Signs from the Oklahoma Driver Manual (Updated 11/24/25). What every kind of sign means, by shape and color: our road sign guide.

Signs the Oklahoma Driver Manual adds

• Warning Signs

  A low clearance sign shows the height of the underpass ahead; vehicles or loads taller than that can't go through. p. 21

• Warning Signs

  A Right Lane Ends sign means the right lane ends ahead and drivers must prepare to merge; a Stop Ahead sign means a stop sign is coming, so be prepared to stop. p. 21

• Warning Signs

  A Steep Hill sign means approach with caution; using a lower gear can help slow your vehicle. A Curve sign means the road ahead curves gently: slow down, keep right and don't pass. p. 21

• Signs, Signals and Markings

  A red rectangle reading 4-WAY or ALL-WAY below a stop sign means all traffic approaching the intersection must stop. p. 19

• Regulatory Signs—Black and White Rectangles

  When a School Zone sign's yellow light is flashing, you must reduce your speed to the limit shown, watch for children and be ready to stop. p. 20

• Regulatory Signs—Black and White Rectangles

  A No U-Turn sign means don't turn around in the street or intersection; a Do Not Pass sign means don't cross the yellow lines to pass because you can't see far enough ahead. p. 20

• Construction and Maintenance Signs

  Orange means a work zone: signs, barricades, cones and barrels guide you through, flashing arrow panels guide you into the proper lane, you must slow to the posted speed, and speeding fines double when workers or equipment are present. p. 23

• Construction and Maintenance Signs

  Flagpersons wear orange hats and vests and use red signs or flags; the law requires you to obey them. When told to stop, stop in your lane without veering, don't move until signaled to go, and then proceed with caution. p. 24

• Signs, Signals and Markings

  Brown signs mean: recreation and cultural places. p. 19

• Regulatory Signs—Black and White Rectangles

  Don't park or stop in a space reserved for people with disabilities unless your vehicle has a disabled license plate or disability placard. p. 20

• Guide Signs

  Mileposts mark every mile on interstate highways from the state line, numbered from the southern line on north-south highways and the western line on east-west highways, and help locate crashes, breakdowns and emergencies; business route signs mark a highway branch through a city's business area. p. 25

• Service Signs

  Blue signs mean: motorist services. p. 25

• Warning Signs

  A pedestrian crossing sign means slow down and yield to pedestrians in the crosswalk. p. 21

• Safety Rules for Highway-Railway Crossings

  If your vehicle stalls on the tracks and the lights begin to flash, you may have only 20 seconds to escape: get out (remember GO), run away at a 45-degree angle toward the train, and call 911. p. 57

• Signs, Signals and Markings

  An eight-sided (octagon) sign always means stop. p. 19

• Signs, Signals and Markings

  A downward-pointing triangle sign means yield. p. 19

• Warning Signs

  Diamond-shaped signs warn of hazards or special conditions ahead. p. 21