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Iowa road signs practice test

Road signs are part of the Iowa DOT knowledge test. Practise the 42 sign questions we wrote from the Iowa handbook, then drill every common sign.

Iowa handbook sign questions

42 questions
  1. Question 1What does a red traffic sign generally tell you?

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    A: Stop, yield, or do what is shown on the sign. Red is the color for signs that make you stop, yield or obey the instruction shown. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Colors, page 6.

  2. Question 2What does a blue traffic sign indicate?

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    A: Services for travelers, such as rest areas, hospitals and fuel. Blue signs direct travelers to services such as rest areas, hospitals, lodging, fuel and restaurants. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Colors, page 6.

  3. Question 3What do fluorescent pink signs indicate in Iowa?

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    A: Incident management, such as crash cleanup or debris removal. Fluorescent pink marks temporary incident scenes, such as a crash being cleared or debris being removed. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Colors, page 6.

  4. Question 4What do fluorescent yellow-green signs warn of?

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    A: Pedestrians, bicycles and schools. Fluorescent yellow-green is used for pedestrian, bicycle and school warning signs. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Colors, page 6.

  5. Question 5What does an orange sign indicate?

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    A: Road work, temporary traffic control or maintenance. Orange signs warn of road work, temporary traffic control and maintenance; watch for changing speed limits and workers. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Colors, page 6.

  6. Question 6What do brown signs show?

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    A: Recreation and cultural points of interest. Brown signs direct you to historical sites, parks and recreational areas. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Colors, page 6.

  7. Question 7Which shape is reserved for the stop sign only?

    red and white octagon road sign
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    A: Octagon. The octagon shape is reserved for stop signs only. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Shapes, page 7.

  8. Question 8On which side of the road is the pennant-shaped no-passing sign placed?

    yellow and black pennant road sign
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    A: The left side. The pennant sign is on the left side of the road and warns of a no-passing zone. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Shapes, page 7.

  9. Question 9What does a pentagon-shaped (five-sided) sign mark?

    fluorescent yellow-green and black pentagon road sign
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    A: School areas and school crossings. Pentagon signs mark school areas and school crossings. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Shapes, page 7.

  10. Question 10What does a number sign under a railroad crossbuck tell you?

    white and black horizontal rectangle road sign
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    A: How many sets of tracks you must cross. The small plaque below a crossbuck tells you how many separate tracks the crossing has. Iowa Driver's License Manual: 2.1 Traffic Signs — Standard Shapes, page 7.

  11. Question 11What do regulatory signs with a red circle and slash over a symbol mean?

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    A: You cannot do the action shown. A red circle with a slash means you cannot do something, such as no left turn or no U-turn. Iowa Driver's License Manual: 2.2 Regulatory Signs, page 8.

  12. Question 12Where is the no passing zone sign located?

    yellow and black pennant road sign
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    A: At the beginning of the no passing zone. The pennant-shaped sign is posted where the no-passing zone starts. Iowa Driver's License Manual: 2.2 Regulatory Signs — No Passing Signs, page 8.

  13. Question 13What information does the blue Emergency Notification System (ENS) sign at a railroad crossing provide?

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    A: A phone number to contact the railroad and a crossing ID number. The ENS sign gives a phone number and unique crossing ID to report stalled vehicles, malfunctioning signals or other hazards. Iowa Driver's License Manual: 2.2 Regulatory Signs — Emergency Notification System (ENS) Sign, page 8.

  14. Question 14At a stop sign with a stop line, where must you stop?

    red and white octagon road sign
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    A: At the stop line. Stop at the stop line if there is one; then you may pull forward to the edge of the intersection when safe. Iowa Driver's License Manual: 2.2 Regulatory Signs — Stop Sign, page 8.

  15. Question 15What should you do if you pass a WRONG WAY sign?

    red and white horizontal rectangle road sign
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    A: Get off the traveled road, stop and turn around as quickly and safely as possible. A Wrong Way sign means you have entered a lane of oncoming traffic; get off the road, stop and turn around safely. Iowa Driver's License Manual: 2.2 Regulatory Signs — Wrong Way, page 8.

  16. Question 16Where will you see a DO NOT ENTER sign?

    red and white square road sign
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    A: At exit ramps, divided-road crossovers and one-way roads. Do Not Enter signs appear at exit ramps, crossovers on divided roadways and on one-way roads. Iowa Driver's License Manual: 2.2 Regulatory Signs — Do Not Enter Sign, page 8.

  17. Question 17What color and shape are most warning signs?

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    A: Yellow diamond with black lettering or symbols. Most warning signs are diamonds with a yellow background and black words or symbols. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  18. Question 18You see the Two-Way Traffic warning sign. What does it mean?

    yellow and black diamond road sign
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    A: You are leaving a one-way road and entering a two-way road; keep right. This sign means the one-way road is ending and oncoming traffic is ahead, so stay to the right. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  19. Question 19What does the Divided Highway Ends sign warn you about?

    yellow and black diamond road sign
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    A: Two-way traffic will no longer be divided; watch for oncoming vehicles. Divided Highway Ends means traffic will no longer be separated by a center strip; watch for oncoming vehicles. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  20. Question 20What should you do when you see the Hill warning sign?

    yellow and black diamond road sign
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    A: Check your brakes before going down the hill. The Hill sign warns the road goes down a hill; check your brakes before descending. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  21. Question 21What does the Lane Ends warning sign tell you?

    yellow and black diamond road sign
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    A: Two lanes will become one; traffic must yield when merging. Two lanes will soon become one, and traffic must yield when merging. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  22. Question 22A yellow diamond sign shows a horse-drawn buggy. What should you do?

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    A: Be alert, reduce speed and pass slowly. Be alert for slow-moving horse-drawn vehicles; reduce your speed and pass slowly. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  23. Question 23What does the T-Intersection Ahead sign mean?

    yellow and black diamond road sign
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    A: The road does not go straight ahead; prepare to turn right or left. Your road ends at a cross road ahead, so you will have to turn left or right. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  24. Question 24What is a chevron sign used for?

    yellow and black vertical rectangle road sign
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    A: To draw added attention to a change in the road's direction. Chevron signs are used with curve signs when added attention is needed to a change in direction. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  25. Question 25What does a Ramp Speed sign show?

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    A: The recommended speed on an exit ramp. The Ramp Speed sign gives the recommended speed on an exit ramp. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  26. Question 26What should you do at a Signal Ahead warning sign?

    yellow and black and red and green diamond road sign
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    A: Be ready for an intersection and a stop light. Signal Ahead signs are used on higher-speed roads; be ready for an intersection and a stop light. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  27. Question 27You are on the main road and see a Merging Traffic sign. What should you expect?

    yellow and black diamond road sign
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    A: Other vehicles blending into your lane. On the main road, be prepared for other vehicles blending into your lane. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  28. Question 28What speed does a reflective orange slow-moving vehicle triangle indicate in Iowa?

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    B: 35 mph or less. A reflective orange triangle means the vehicle is traveling 35 mph or less. Iowa Driver's License Manual: 2.5 Slow-Moving Vehicle Sign, page 11.

  29. Question 29What do Interstate mile markers show?

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    A: The number of miles from where the Interstate entered the state. Mile markers show the miles from where the Interstate route entered the state and help give your location in an emergency. Iowa Driver's License Manual: 2.6 Guide Signs, page 11.

  30. Question 30What does the shape of a route sign tell you?

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    A: The type of roadway, such as interstate, U.S. highway or Iowa route. Interstates, U.S. highways, Iowa routes and county roads each use a differently shaped route marker. Iowa Driver's License Manual: 2.8 Route Signs, page 11.

  31. Question 31What is the basic color of work zone signs and warning devices?

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    A: Orange. Orange is the basic color of work zone signs and warning devices; most are diamond-shaped. Iowa Driver's License Manual: 2.11 Work Zones, page 14.

  32. Question 32What may happen to fines in Iowa work zones?

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    A: They may double. Work zone fines may be doubled, so slow down and stay alert. Iowa Driver's License Manual: 2.11 Work Zones, page 14.

  33. Question 33When are large flashing arrow boards typically used?

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    A: When a lane or shoulder is closed. Big flashing arrow panels show that a lane or the shoulder ahead is closed. Iowa Driver's License Manual: 2.11 Work Zones, page 14.

  34. Question 34What does the Divided Highway Begins warning sign mean?

    yellow and black diamond road sign
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    A: Two-way traffic will soon be divided by a center strip. This sign warns that a median or center strip will soon separate the two directions of traffic. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  35. Question 35What does the School Bus Stop Ahead sign warn you about?

    fluorescent yellow-green and black diamond road sign
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    A: A stopped school bus may pick up or drop off passengers ahead. A school bus stops ahead to load or unload children; watch for them and be ready to stop. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  36. Question 36What does a Gradual Curve warning sign tell you?

    yellow and black diamond road sign
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    A: The road ahead curves gradually; be prepared for a change in direction. A gentle bend is coming; prepare to steer through the change in direction. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  37. Question 37What should you do when you see the Slippery When Wet sign in wet weather?

    yellow and black diamond road sign
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    A: Slow down. The road ahead gets slick when wet, so reduce speed in rain. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  38. Question 38What does a Deer Crossing sign mean?

    yellow and black diamond road sign
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    A: Deer may try to cross; slow down and watch carefully. There may be deer trying to cross the roadway; slow down and watch carefully. Iowa Driver's License Manual: 2.3 Warning Signs, page 9.

  39. Question 39What does a yield sign require?

    red and white downward-pointing triangle road sign
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    A: Slow down and yield to traffic in the intersection or roadway you are entering. At a yield sign, slow down and let traffic already in the intersection or on the road you are joining go first; stop if needed. Iowa Driver's License Manual: 2.2 Regulatory Signs — Yield Sign, page 8.

  40. Question 40What does a One-Way sign mean?

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    A: Traffic moves only in the direction of the arrow. Traffic moves only in the direction of the arrow. Iowa Driver's License Manual: 2.2 Regulatory Signs — One-Way, page 8.

  41. Question 41When do maximum speed limits apply, according to the Iowa manual?

    white and black vertical rectangle road sign
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    A: For ideal driving conditions. Maximum speed limits are for ideal conditions; reduce speed when roads are slippery or visibility is poor. Iowa Driver's License Manual: 2.2 Regulatory Signs — Speed Limit Signs, page 8.

  42. Question 42What do lane control signs do?

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    A: Mark where you can go and where you can turn, often with arrows. Lane control signs mark where you can go and turn, often with arrows, along or over the road. Iowa Driver's License Manual: 2.2 Regulatory Signs — Lane Control Signs, page 8.

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Road signs drill

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