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Idaho Class D Knowledge Practice Test
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Passing target: 85% (34/40)
Regulatory, Lane & Parking SignsStandalone practice
A black U-shaped arrow appears behind a red circle and diagonal slash. Which movement is prohibited?
Correct answer: Making a U-turn
Why
A red prohibition circle and slash over a U-shaped arrow means drivers may not reverse direction with a U-turn there.
Verified against Idaho Driver’s Handbook, July 2026 · Prohibited U-turn symbol · p. 45
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