A speed restriction sign:
- May be ignored in rainy, snowy, or icy conditions.
- Has a triangular shape.
- Is blue with black lettering.
- Shows a recommended speed for a curve or turn. ✓
Answer: D. Shows a recommended speed for a curve or turn.
A speed restriction sign shows a recommended speed for a curve or turn, telling you the fastest safe speed to travel around that curve.
Why this is the answer
The handbook describes an advisory speed sign as the fastest safe speed you should travel around the curve ahead, and notes it may be used together with any warning sign. That matches a sign giving a recommended speed for a curve or turn rather than a legal speed limit you must not exceed. The handbook treats curve warnings separately, pairing the curve warning with a speed you should not go above as you go through the bend.
Why the other answers are wrong
- A. May be ignored in rainy, snowy, or icy conditions. — Nothing in the handbook says any speed sign can be ignored in rain, snow, or ice; the advisory speed is the fastest safe speed for the curve, which is a limit on what is safe.
- B. Has a triangular shape. — The handbook says warning signs are normally yellow and diamond-shaped, so a triangular shape is not what these signs look like.
- C. Is blue with black lettering. — The handbook gives the yellow diamond shape for warning signs and says nothing about a blue sign with black lettering for speed advice.
Remember it
A speed number riding under a yellow warning sign is advice for the curve ahead, not the posted legal limit.