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South Carolina Class D Knowledge Test Practice
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Warning, Construction & Information SignsStandalone practice
This sign is posted before a curve on a highway with a 55 mph speed limit. What does the number on the lower plaque tell you?
Correct answer: The advised safe speed for the curve in good conditions; go slower on a wet road.
Why
Slow to the advised speed before you enter the curve, so that you do not need to brake in it. The advised speed is for ideal conditions, so use a lower speed in rain or darkness or when you tow a trailer. The same kind of plaque can appear with other warning signs, such as a sharp curve or a turn.
Verified against South Carolina Driver's Manual · Warning Signs · p. 64
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