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Idaho Class D Knowledge Practice Test
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Safe & Responsible DrivingStandalone practice
A driver who has been drinking takes a cold shower and drinks coffee. What effect does that have on the alcohol already in the body?
Correct answer: None; only time removes alcohol from the body
Why
Coffee, cold showers and similar remedies do not sober a driver. Time is needed for the body to process alcohol, and feeling alert does not show that driving is safe. Arrange a sober ride instead of guessing when the effects have ended.
Verified against Idaho Driver’s Handbook, July 2026 · Coffee after alcohol · p. 129
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