Trusted Local Auto

U.S. Road Signs

Warning, Construction & Information Signs

You see this sign as you drive. What does it warn you about?

A yellow diamond sign with a black border and the single black word BUMP.
  1. AA sudden low spot in the road ahead.
  2. BA sharp rise in the road ahead.
  3. CPavement that changes to gravel ahead.
  4. DA rough, uneven road surface for some distance.
Show the answer and the explanation

Correct answer: B. A sharp rise in the road ahead.

Why

This yellow warning sign tells you that there is a sharp rise in the road surface ahead. Slow down before you reach it, so that you keep control and do not jolt your vehicle or your passengers. If a speed plaque is below the sign, use that speed as a guide. The DIP sign has the same shape and color, but it warns of a sharp low spot in the road instead.

Why the other answers are not correct

  • A. Wrong: a sharp low spot in the road is shown by the DIP sign.
  • C. Wrong: a change from pavement to gravel is shown by the PAVEMENT ENDS sign.
  • D. Wrong: a long rough stretch is shown by the ROUGH ROAD sign; this sign warns of one sharp rise.

Verified against Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition with Revision 1 · Section 2C.26 BUMP and DIP Signs (W8-1 and W8-2) · p. 214

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