Question 1 of 20Road signs
South Dakota road signs test: free practice
South Dakota road signs test: free practice with 20 sign questions.
Road-sign questions
Question 2 of 20Road signs
What should you be ready to do after you pass this sign?
Question 3 of 20Road signs
You are in the lane that this sign says will end. What should you do?
Question 4 of 20Road signs
What does this sign warn you about?
Question 5 of 20Road signs
What does this sign tell you to do?
Question 6 of 20Road signs
What does this round yellow sign warn you about?
Question 7 of 20Road signs
What does this sign warn of?
Question 8 of 20Signals and pavement markings
At some South Dakota railroad crossings a bell or horn sounds as a train comes. When may you cross?
Question 9 of 20Road signs
You come to this sign. There is no stop line and no crosswalk. Where should you stop?
Question 10 of 20Road signs
You are on a one-way street and see this sign. What does it mean?
Question 11 of 20Road signs
What does this sign tell you to do?
Question 12 of 20Road signs
Where would you expect to see this sign?
Question 13 of 20Road signs
What does this sign mean?
Question 14 of 20Road signs
What may you not do where this sign is posted?
Question 15 of 20Road signs
What does this orange sign tell you?
Question 16 of 20Road signs
When should you be most alert for animals near this sign?
Question 17 of 20Road signs
What does this sign warn you about?
Question 18 of 20Road signs
What does this sign tell you about the road?
Question 19 of 20Road signs
Your lane has this sign over it. What must you do at the intersection?
Question 20 of 20Road signs
What is this sign warning you about?
1 of 20
Answer each question to see the explanation. Keyboard: A–D or 1–4 to answer, N next, P previous.
Answers and explanations (text version)
The correct answer to each question above, why it is right, and where it comes from. Try the test first.
Question 1: C. So a driver about to pass will see it
A driver getting ready to pass looks to the left, so the no-passing zone pennant is placed there where it will be seen.
Handbook: Chapter: Traffic signs — Warning signs
Question 2: D. Follow the signals of a worker directing traffic
This sign warns of a flagger ahead. A flagger directs traffic with signals that you must obey.
Handbook: Chapter: Traffic signs — Work zone signs
Question 3: C. Signal and merge when there is a safe gap
When your lane ends, signal early and merge into the next lane when there is a safe gap.
Handbook: Chapter: Traffic signs — Warning signs
Question 4: B. The road curves to the right ahead
This curve sign means the road bends to the right ahead. Slow down before you reach the curve.
Handbook: Chapter: Traffic signs — Warning signs
Question 5: A. Let traffic with the right-of-way go first
A yield sign means you slow down and let traffic and people with the right-of-way go first, stopping if you need to.
Handbook: Chapter: Traffic signs — Regulatory signs
Question 6: D. A railroad crossing is ahead
The round yellow sign with an X warns of a railroad crossing ahead. Slow down, look and listen for trains.
Handbook: Chapter: Traffic signs — Warning signs
Question 7: A. A sharp right turn that needs a low speed
The bent arrow means a sharp turn to the right, which needs a much lower speed than a gentle curve.
Handbook: Chapter: Traffic signs — Warning signs
Question 8: C. After the bell or horn has stopped
Some crossings have a bell or horn, and the manual says "Do not cross until the bell or horn has stopped."
Handbook: Rules of the Road — Railroad Crossing Warning Signs
Question 9: B. Before you enter the intersection, where you can see
With no stop line or crosswalk, stop before you enter the intersection at a point where you can see traffic coming.
Handbook: Chapter: Traffic signs — Regulatory signs
Question 10: C. Traffic will soon come toward you on this road
The two-way traffic sign warns that oncoming traffic will soon use the same road as you.
Handbook: Chapter: Traffic signs — Warning signs
Question 11: C. Follow the signs around a closed road
A detour sign leads you around a closed road. Follow the detour signs to get back on your route.
Handbook: Chapter: Traffic signs — Work zone signs
Question 12: A. On the outside edge of a sharp curve
Chevron signs are placed on the outside of a sharp curve and point the way to steer.
Handbook: Chapter: Traffic signs — Warning signs
Question 13: D. The right lane ends ahead
The right edge line bends in toward the center, which means the right lane ends ahead and drivers in it must move left.
Handbook: Chapter: Traffic signs — Warning signs
Question 14: D. Turn around to go back the way you came
This sign bans U-turns. You may not turn around to go back the way you came at that spot.
Handbook: Chapter: Traffic signs — Regulatory signs
Question 15: B. There is road work ahead, so slow down
Orange signs are for work zones. This one warns of road work ahead, so slow down and stay alert.
Handbook: Chapter: Traffic signs — Work zone signs
Question 16: D. At dawn and at dusk
Deer move most at dawn and at dusk, so take extra care at those times where this sign is posted.
Handbook: Chapter: Traffic signs — Warning signs
Question 17: B. The road may be slick when it is wet
This slippery when wet sign means the road gets slick in rain. Slow down and avoid sudden braking or steering.
Handbook: Chapter: Traffic signs — Warning signs
Question 18: C. All traffic moves the way the arrow points
A one way sign means all traffic on that road moves only in the direction the arrow shows.
Handbook: Chapter: Traffic signs — Regulatory signs
Question 19: C. Turn left
A left turn only sign means every vehicle in that lane must turn left at the intersection.
Handbook: Chapter: Traffic signs — Regulatory signs
Question 20: D. The bridge ahead is narrower than the road
The narrow bridge sign means the bridge is narrower than the road. Slow down and watch for oncoming vehicles.
Handbook: Chapter: Traffic signs — Warning signs
US traffic signs, signals and pavement markings as shown in the South Dakota Driver License Manual (Revised 11/2024). No separate sign test is described. 16 correct (80%) is our practice mark, not an official pass mark.
United States road signs and what they mean
Our own simplified drawings of the signs learners meet most. The full list, with meanings, is in the United States sign library; the official reference is the South Dakota Driver License Manual.
Regulatory signs
Come to a complete stop at the line, crosswalk or intersection edge, then go only when the way is clear.
Slow down and let traffic and pedestrians that have the right-of-way go first, stopping if needed.
The highest legal speed on this road under ideal conditions.
You must not drive into this road or ramp from this direction.
You are driving against traffic; stop safely and turn around.
Traffic on this road moves only in the direction of the arrow.
Left turns are not allowed here.
Right turns are not allowed here.
Turning around to go back the way you came is not allowed here.
You may not turn while the signal is red, even after stopping.
Pass to the right of the island or obstruction ahead.
Overtaking other vehicles is not allowed on this stretch.
You may not park here; stopping briefly to load or unload may still be allowed where local rules say so.
Vehicles in this lane must turn left.
Marks the crossing itself; yield to any train and stop if one is coming.
Warning signs
Marks the start of a stretch where passing is not allowed; it sits on the left side of the road.
The road bends gently to the right ahead; slow down before the bend.
The road turns sharply right ahead; slow down a lot before the turn.
A series of bends lies ahead; keep speed down until the road straightens.
Another road crosses yours ahead; watch for traffic from both sides.
A road joins from the right ahead; expect vehicles entering.
The road you are on ends ahead at a crossing road; be ready to turn left or right.
Traffic from another lane or ramp will join yours ahead; adjust speed so both can merge safely.
The right lane ends ahead; drivers in it must move left when safe.
A median will separate the two directions of traffic ahead; keep right of it.
The median ends ahead and traffic in both directions will share one road.
You are leaving a one-way road; oncoming traffic will use the same road ahead.
There is a traffic light ahead; be ready to stop.
A stop sign is coming up; slow down and prepare to stop.
A yield sign is coming up; slow down and be ready to give way.
People may be crossing ahead; slow down and yield to anyone in the crosswalk.
A school is near and children may be crossing; slow down and obey any school speed limit.
A railroad crossing is ahead; slow down, look and listen for trains.
The surface gets slick in rain; slow down and avoid sudden braking or steering.
Deer often cross here, especially at dawn and dusk; slow down and watch the roadsides.
A steep downgrade is ahead; check your speed and use a lower gear.
The bridge ahead is narrower than the road; slow down and watch for oncoming vehicles.
Marks the outside of a sharp curve and shows the direction to steer.
Temporary signs
Construction is ahead; slow down, expect changes and obey work-zone signs.
A worker is directing traffic ahead; follow their signals.
People are working on or next to the road; slow down and give them space.
The usual route is closed; follow the detour signs in the arrow direction.