South Dakota Operator License Knowledge Practice Test
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Passing target: 80% (24/30)
You drive on a two-lane highway and pass the three yellow signs in this image, in the order 1, 2 and 3. Which description of the road ahead matches the signs?
Three yellow diamond faces are numbered 1, 2 and 3 from left to right. They show a winding arrow, an arrow with a sharp right bend, and opposing arrows beside a black center shape at the top.
Correct answer: 1: several curves in a row; 2: one sharp curve; 3: the highway becomes divided
Why
Curve warning signs show how the road bends ahead: one gentle curve, one sharp curve, or a series of curves. A sharp curve needs a lower speed than a gentle one. Two similar signs mark where a divided highway begins and where it ends. After the end sign, oncoming traffic uses the same roadway as you, with no median between you.
Verified against South Dakota Driver License Manual · Warning signs · p. 33
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