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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Regulatory, Lane & Parking SignsStandalone practice
A white lane-use sign shows a left arrow above the word ONLY. What must a driver in that lane do?
Correct answer: Turn left at the intersection.
Why
An arrow paired with ONLY reserves that lane for the movement shown.
Verified against Iowa Driver's License Manual · Regulatory Signs · p. 8
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