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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Warning, Construction & Information SignsStandalone practice
A diamond-shaped sign has an orange background with black wording or a worker symbol. What should a driver expect?
Correct answer: Temporary road work, workers, or equipment ahead.
Why
Orange diamond signs warn about temporary work conditions that require reduced speed and careful observation.
Verified against Iowa Driver's License Manual · Work Zones · p. 14
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