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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
What should a driver do when facing a flashing circular yellow traffic signal?

Correct answer: Proceed with caution, yielding to vehicles and pedestrians.
Why
A flashing yellow signal permits cautious movement while requiring the driver to observe and respond to hazards.
Verified against Iowa Driver's License Manual · Traffic Signals · p. 11
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