A diamond-shaped sign with a yellow background and a black symbol means:
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A.
A rule that you must follow on the road.
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B.
A hazard or change in the road ahead. Correct
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C.
A construction zone or work area ahead.
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D.
A guide to the next available exit.
The answer is "A hazard or change in the road ahead."
Yellow with black symbols on a diamond shape is the standard warning category. The manual states warning signs are yellow and alert you to known possible hazards or a change in road conditions ahead, like a curve, a merge, or slippery pavement when wet. Construction warnings use the same diamond shape but switch the background color to orange, so the color shift is the cue that the warning is temporary. Regulatory rules are black words or symbols on a white rectangle, and guide information is green. Reading the color first tells you which category you are looking at before you process any text.
The traps in the wrong answers
A. A rule that you must follow on the road.
Regulatory rule signs are rectangular with black words or symbols on a white background, not yellow diamonds. Misreading: Confuses warning shape and color with regulatory signs, which the manual describes as rectangular with black words or symbols on a white background.
C. A construction zone or work area ahead.
Work zones use orange signs, not yellow. The color shift from yellow to orange marks a temporary work-area warning. Misreading: Misreads the warning category by assigning the yellow background to work zones, which use orange instead.
D. A guide to the next available exit.
Guide and exit information signs are green, not yellow. Misreading: Confuses the yellow warning category with green guide signs that direct drivers to exits and destinations.
This question tests your knowledge of Road Signs in Oregon. Source: Oregon Driver Manual, "Warning Signs," p.10..
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