South Dakota road signs practice test
Regulatory, warning and guide signs: shapes, colors and what each requires you to do. 113 questions.
What do most warning signs look like?
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Sample road signs questions
What do most warning signs look like?
- A Yellow diamonds with black letters or symbols
- B Blue rectangles with white letters
- C Red octagons with white letters
- D White rectangles with black, red or green letters
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A. Yellow diamonds with black letters or symbols
Warning signs alert you to possible danger ahead, such as curves, crossings or merging traffic. They are usually yellow and diamond shaped with black lettering or symbols. Some, such as school zone, school crossing and pedestrian crossing signs, may be fluorescent yellow.
Where must you stop at a stop sign if there is a stop line?
- A Past the stop line, where you can see cross traffic
- B Behind the stop line
- C At the edge of the cross street
- D With your front bumper on the crosswalk
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B. Behind the stop line
At a stop sign, stop behind the stop line or crosswalk if one is present, or before the sign itself. Then look in all directions and yield to crossing vehicles and pedestrians.
What does a red and white downward-pointing triangle require you to do?
- A Prepare for a lane to end ahead
- B Come to a full stop every time, then proceed
- C Merge without changing speed, because others must yield
- D Slow down and yield the right-of-way to traffic you are entering or crossing
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D. Slow down and yield the right-of-way to traffic you are entering or crossing
A yield sign means you must slow down and yield the right-of-way to traffic in the intersection you are crossing or the road you are entering. Stop if you need to, but you do not have to stop when the way is clear.
Along a South Dakota state highway you see a sign that says "THINK." What does it mark?
- A A sobriety checkpoint ahead
- B The start of a no-passing zone
- C A spot where a person was killed in a crash
- D A rest area or scenic overlook
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C. A spot where a person was killed in a crash
South Dakota's THINK sign program, started in 1979, places one sign on the state highway for each person killed in a crash. The signs honour the victims and remind drivers of dangers such as drunk driving, speeding and not wearing seat belts.