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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Safe & Responsible DrivingStandalone practice
A medicine label warns that it may cause drowsiness. You feel its effects after taking the prescribed dose. What is the safest choice?
Correct answer: Do not drive; arrange another way to travel.
Why
Check medicine warnings and ask a qualified health professional about driving effects. Do not drive while your ability is impaired. Iowa’s OWI statute contains specific prescription-related qualifications, so this safety advice is not a claim that every correctly used prescription automatically creates an OWI offense.
Verified against Iowa Driver's License Manual and current primary rules · Medicine and driving safety · p. 37
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