AhaBulbStuff Everyone Should Know

Games · Vehicles & Flying

Stuff Every Driver Should Know

Road signs, right-of-way and safe driving: the questions on every state's permit test.

Start Stuff Every Driver Should Know ⚡ Today's sprint 🚗 Drive mode

Print the first 50 cards (free)Get the whole test as a printable PDF: $3 (pre-order)

Free to start, no sign-up. 113 cards so far. One Knowledge Score and day streak across all your courses.

⏱ Timed practice exam

AhaBulb practice exam: 30 questions, no time limit, pass with 24 right (80%).

Set by each state; many use about 30 questions and 80% to pass.

Take it like the real thing: the real number of questions, no hints until you finish, then your score by topic, every miss explained, and a readiness score from your last 3 exams.

Take a timed practice exam For AhaBulb members. See plans

About the real test: Learner's permit knowledge test (rules vary by state)

Rules change: always check the official source before test day.

Try 3 cards

  1. At an unsigned intersection, who normally goes first?
    Show the answer

    The first to arrive. Arrival order decides who normally goes first. Still watch for people or vehicles that may not yield.

  2. Two vehicles arrive together at an unsigned intersection. Who yields?
    Show the answer

    The driver on the left. When arrival is simultaneous, let the road user on your right go first. This rule also applies at an all-way stop after everyone stops.

  3. At an unsigned T-intersection, who has the right-of-way?
    Show the answer

    Traffic on the through road. The road that ends must yield to the road that continues. Check both directions before entering the through road.

All 113 practice questions

The first 50 are free, with the answer, why it's right and the official sources. The other 63 (🔒) are for AhaBulb members. Or play them as a game and track what you've learned.

Show all 113 questions
  1. At an unsigned intersection, who normally goes first?
  2. Two vehicles arrive together at an unsigned intersection. Who yields?
  3. At an unsigned T-intersection, who has the right-of-way?
  4. Before turning left, which traffic must you yield to?
  5. Pulling out of a driveway onto a road, who has priority?
  6. Do pedestrians have priority in an unmarked crosswalk?
  7. About how early should you signal a turn?
  8. While waiting to turn left, where should your wheels point?
  9. Which lane should a normal right turn begin and end in?
  10. What should you do after missing your turn?
  11. Should you turn left just because an oncoming car signals right?
  12. On a multilane road, what is the far-left lane mainly for?
  13. What checks belong before every lane change?
  14. How should you move across several highway lanes?
  15. Large broken lane lines warn you to prepare for what?
  16. What is safer than weaving through traffic?
  17. May you pass near a hill when you cannot see oncoming traffic?
  18. In most states, may you leave the pavement to pass another vehicle?
  19. In most states, when may you pass a left-turning vehicle on the right?
  20. What should you do while another vehicle passes you?
  21. What speed should you aim for on a highway entrance ramp?
  22. Should you stop on a highway entrance ramp before merging?
  23. Who has priority when you merge onto a highway?
  24. How early should you signal a highway exit?
  25. When should you reduce speed for a highway exit?
  26. Can the posted limit be too fast for current conditions?
  27. Which condition should affect your driving speed?
  28. In good conditions, what minimum following gap do many state manuals recommend?
  29. How do you measure a three-second following gap?
  30. When parking downhill by a curb, which way should wheels turn?
  31. On a hill with no curb, which way should wheels point?
  32. When you finish parallel parking, how close to the curb should you be?
  33. May you park on an unmarked crosswalk?
  34. What should you do before putting a vehicle in motion backward?
  35. What speed gives the best control while backing?
  36. Lap and shoulder belts cut a front-seat car rider's risk of being killed in a crash by about how much?
  37. Where is the safest place for a young child to ride in a car?
  38. In most states, what is the legal blood alcohol (BAC) limit for drivers 21 and older?
  39. What is the alcohol limit for drivers under 21 in most states?
  40. What does implied consent mean when you drive?
  41. What should you do if you feel drowsy while driving?
  42. What must you do when a stopped school bus has flashing red lights?
  43. You see a stopped emergency vehicle with flashing lights on the shoulder. What do move over laws require?
  44. In California, Tennessee and many other states, how much room must you give a bicyclist when passing?
  45. What are the No Zones around large trucks?
  46. When must you have your headlights on?
  47. What should you do if your car starts to hydroplane?
  48. What lights should you use when driving in fog?
  49. After a minor crash where no one is hurt, what should you do with your car?
  50. What is the purpose of graduated licensing for new drivers?
  51. An ambulance with lights and siren is coming toward you. What should you do? 🔒
  52. If your brake pedal suddenly sinks to the floor, what should you do first? 🔒
  53. Why are motorcycles harder to see than cars? 🔒
  54. The car in the next lane stops at a crosswalk. What should you do? 🔒
  55. How should you change your following distance when the road is wet? 🔒
  56. On snow or ice, how should you brake? 🔒
  57. If the back of your car skids on a slippery road, which way should you steer? 🔒
  58. When must you switch from high beams to low beams for an oncoming car? 🔒
  59. Can over-the-counter medicine affect your driving? 🔒
  60. Why is following close behind a large truck dangerous? 🔒
  61. In states like California and New York, a crash must be reported to the DMV if damage reaches about what amount? 🔒
  62. Why do many graduated licensing programs limit teen passengers? 🔒
  63. What should you do if you come to a flooded road? 🔒
  64. What should you do if a tire blows out while you are driving? 🔒
  65. Why should you drive slower at night, even on a clear road? 🔒
  66. A child should use a booster seat until the adult seat belt fits, usually at about what height? 🔒
  67. Why must you wear a seat belt even if the car has air bags? 🔒
  68. Can marijuana affect your ability to drive safely? 🔒
  69. How should a seat belt fit an adult? 🔒
  70. At night, which person walking near the road is hardest for a driver to see? 🔒
  71. When parking uphill by a curb, which way should wheels turn? 🔒
  72. Which sign is the only one shaped like an eight-sided octagon? 🔒
  73. A red and white triangle points down at you. What should you do? 🔒
  74. A sideways yellow triangle sign on the LEFT side of the road says what? 🔒
  75. A fluorescent yellow-green five-sided sign shaped like a house warns you of what? 🔒
  76. A round yellow sign with a black X and two Rs means what? 🔒
  77. For most drivers in most states, what does a white RAILROAD CROSSING crossbuck require? 🔒
  78. Yellow diamond-shaped signs with black symbols are what type of sign? 🔒
  79. What does an orange sign with black letters tell you? 🔒
  80. Highway signs showing cities, exits and miles to go are usually what color? 🔒
  81. A blue sign with white symbols for gas, food and lodging is what kind of sign? 🔒
  82. A brown sign with white letters usually points you toward what? 🔒
  83. Bright fluorescent yellow-green warning signs warn about what? 🔒
  84. A white rectangle sign with black letters, like SPEED LIMIT 45, is what kind of sign? 🔒
  85. At a railroad crossing with a STOP sign, what is the minimum stopping distance from the nearest rail? 🔒
  86. What does a flashing red traffic light mean? 🔒
  87. What does a flashing yellow traffic light (a round one, not an arrow) mean? 🔒
  88. You are turning on a green arrow and it changes to a steady yellow arrow. What does that mean? 🔒
  89. What does a flashing yellow LEFT arrow mean? 🔒
  90. What does a steady green arrow pointing left mean? 🔒
  91. The traffic lights at an intersection are completely dark. What do you do? 🔒
  92. At a steady red right arrow, which rule works safely across states? 🔒
  93. In most states, when may you turn right at a steady red light? 🔒
  94. A pedestrian signal shows a flashing orange raised hand. What does it mean for walkers? 🔒
  95. A steady red X light hangs over your lane. What does it mean? 🔒
  96. The light over your lane changes to a steady yellow X. What should you do? 🔒
  97. Yellow lines on the road separate traffic moving which way? 🔒
  98. On a divided highway, what color is the edge line on your LEFT side? 🔒
  99. On a two-lane road, a broken yellow line is on your side of the center. What does it allow? 🔒
  100. Two solid yellow lines down the middle of the road mean what? 🔒
  101. A middle lane has a solid yellow line outside and a broken yellow line inside on both sides. What is it? 🔒
  102. A white diamond painted in a highway lane marks what kind of lane? 🔒
  103. A row of white triangles painted across your lane, points toward you, shows what? 🔒
  104. At a STOP sign or red light, where do you stop if there is a wide white line across your lane? 🔒
  105. How long is each painted dash in a standard broken lane line? 🔒
  106. Your lane line changes from long dashes to short, closely spaced dots. What is it warning you about? 🔒
  107. Driving at night, the road reflectors ahead glow RED in your headlights. What does that mean? 🔒
  108. A bicycle symbol with two arrowheads (chevrons) painted in a traffic lane tells drivers what? 🔒
  109. Two solid white lines separate your lane from a carpool lane. May you cross them? 🔒
  110. Under a yellow curve warning sign, a small yellow sign says 25 MPH. What is it? 🔒
  111. What two words appear on the standard paddle used by work-zone flaggers? 🔒
  112. You pass a red sign with white letters saying WRONG WAY. What should you do? 🔒
  113. A sign shows a red circle with a red slash over a symbol, like a U-turn arrow. What does it mean? 🔒