A yellow diamond sign shows a car with wavy tracks behind its tires. What does it warn?
-
A.
The shoulder ahead is loose gravel
-
B.
The pavement is unusually slick when wet Correct
-
C.
The lane has been recently repaved
-
D.
The road floods regularly during heavy rain
The answer is "The pavement is unusually slick when wet"
The Slippery When Wet sign warns that the pavement ahead is unusually slick when wet, even in light rain. It is a hazard warning, not a notice about flooding, shoulder type, or recent paving work, and on a slick surface you should reduce speed and increase your following distance. A driver who lands on D is reading the wavy tracks as standing water pooling on the road, but the manual ties this yellow diamond only to pavement that becomes slippery in wet conditions.
The traps in the wrong answers
A. The shoulder ahead is loose gravel
Loose gravel uses its own warning sign with a different symbol. This answer misreads the wavy-track symbol as a gravel or shoulder hazard; the manual assigns this sign to slick pavement, not shoulder surface type.
C. The lane has been recently repaved
Recent paving is signed with orange work-zone notices, not yellow warnings. This answer treats a yellow warning sign as a work-zone or construction notice; the manual lists this yellow diamond as a slick-pavement warning, not a paving advisory.
D. The road floods regularly during heavy rain
Flooding hazards are posted with separate signs, not the wavy-track symbol. This answer confuses a slick-surface warning with a standing-water or flooding warning; the manual ties this sign only to pavement that is slick when wet.
This question tests your knowledge of Warning Signs in Oregon. Source: Oregon Driver Manual, "Warning Signs," p.12..
Related Oregon questions
- What category of information do yellow diamond-shaped signs convey? →
- A yellow diamond sign shows the silhouette of a deer. What does it tell you? →
- A yellow diamond sign shows a vertical line with a smaller horizontal line extending to the right at a right angle. What does this sign warn of? →
- You see the Divided Highway Begins warning sign. What should you do? →
- What does the Low Clearance warning sign tell you? →
You just took one Oregon question apart. The book does it for the whole test.
The Oregon book unlocks a free companion: an adaptive study plan, progress synced across your devices, a denser laminate cheat sheet, and a test-day walkthrough. Verify your copy once, usually in seconds; there's nothing extra to buy.
$18.99 paperback, free companion included.