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Washington Personal Driver Knowledge Test
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Passing target: 80% (32/40)
Warning, Construction & Information SignsStandalone practice
On a rural highway, you pass this yellow diamond sign with a three-lamp signal symbol before a curve. You cannot see an intersection yet. What should you expect?
Correct answer: A traffic signal ahead, which may be red when you arrive
Why
Signal-ahead signs are placed where a curve, hill or other obstruction hides a traffic signal until you are close. Ease off the accelerator and check your mirrors, so that you can stop smoothly if the light is red. A late, hard stop can cause a rear-end crash.
Verified against Washington Driver Guide · Signal ahead · p. 120
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