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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Traffic Signals & Road MarkingsStandalone practice
The lane-control signal above your lane changes to a steady yellow X. What should you do?
Correct answer: Move out of the lane as soon as it is safe.
Why
A steady yellow X warns that the lane will soon become unavailable to your direction. Check traffic, signal and leave the lane safely. Do not confuse a steady display with other specifically defined lane-control indications.
Verified against Iowa Driver's License Manual and current primary rules · Steady yellow X above a lane · p. 15
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