Warning, Construction & Information Signs
What does this sign warn you about?
- ATrucks may enter or cross the road at a point ahead.
- BThe road climbs a steep hill where trucks may move slowly.
- CTrucks are not allowed to use the road beyond this sign.
- DA steep downgrade is ahead; you may need a lower gear.
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Correct answer: D. A steep downgrade is ahead; you may need a lower gear.
Why
This yellow diamond warns of a steep downgrade ahead. Slow down before the hill starts. Use a lower gear so the engine helps hold your speed and the brakes stay cool. Watch for slow trucks. A sign that shows a truck on level ground is different: it warns that trucks may enter or cross the road.
Why the other answers are not correct
- A. Wrong: that warning shows a truck on level ground or the words TRUCK CROSSING, not a truck on a slope.
- B. Wrong: the truck is shown going down a slope; this sign is used before a downgrade, not a climb.
- C. Wrong: a ban on trucks uses a white sign with a red circle and slash; a yellow diamond is a warning.
Verified against Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition with Revision 1 · Section 2C.14 Hill Signs (W7-1 and W7-1a) · p. 208
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