A yellow diamond sign shows a vehicle on a downward slope. What does it warn?
-
A.
A steep grade is ahead Correct
-
B.
A weigh station for trucks is ahead
-
C.
Trucks must use the right-hand lane
-
D.
A runaway-truck ramp is ahead
The answer is "A steep grade is ahead"
The Hill warning sign tells you a steep grade is ahead. On a downgrade you should reduce speed before the descent and use a lower gear if needed. The sign does not indicate weigh stations, truck-lane restrictions, or runaway-truck ramps, each of which uses its own sign.
The traps in the wrong answers
B. A weigh station for trucks is ahead
Weigh stations are posted on guide signs, not yellow warning signs. Misreading: Confuses a yellow warning sign with a green or blue guide/information sign.
C. Trucks must use the right-hand lane
Lane restrictions for trucks are regulatory, not warning, signs. Misreading: Treats a yellow warning diamond as a regulatory rectangle that commands lane use.
D. A runaway-truck ramp is ahead
Runaway-truck ramps have their own dedicated warning sign. Misreading: Conflates the generic Hill warning with the separate runaway-truck-ramp sign.
This question tests your knowledge of Warning Signs in Oregon. Source: Oregon Driver Manual, "Signs & Traffic Signals - Warning Signs," p.12..
Related Oregon questions
- What category of information do yellow diamond-shaped signs convey? →
- A yellow diamond sign shows a car with wavy tracks behind its tires. What does it warn? →
- 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? →
The Oregon book is on the way
Drop your email and we'll send the free Oregon cheat sheet now, plus a note the moment the book is available.