California Car / Permit practice question · Alcohol & Drugs
According to the BAC table in the California handbook, what lowers your blood alcohol concentration after you drink?
Answer choices
- Drinking strong coffee
- Only the passage of time— Correct answer
- Taking a cold shower
- Eating a large meal
Why this is the answer
The handbook's BAC table says to subtract 0.01% for each 40 minutes that pass between drinks, so the passage of time is what lowers your BAC. Nothing in it credits coffee, a cold shower, or a meal. The handbook adds that a single drink can already affect your driving.
Source: California Driver Handbook — Alcohol and Drugs
Content reviewed against official driver handbooks · August 12, 2026
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