DUI & Impaired Driving
BAC limits, implied consent, penalties, and impairment factors.
DUI & Impaired Driving rules in Texas follow the federal framework with state-specific limits, distances, and exceptions. The practice questions below are drawn from the Texas driver handbook, so they track the state's own rules.
DUI & Impaired Driving questions, Texas edition.
Each question links through to a full explanation, the rule it tests, and a citation back to the manual.
- In Texas, what is the blood alcohol concentration at which a driver 21 or older is considered legally intoxicated? →
- What is the legal BAC limit for a driver under 21 operating a vehicle in Texas? →
- An adult driver refuses to give a breath or blood specimen on a first arrest for driving while intoxicated. What is the license suspension? →
- According to the Texas manual, how do typical social doses of marijuana affect a driver? →
- According to the manual, about how long does the body take to rid itself of each drink consumed? →
- You have been drinking and someone suggests coffee, a cold shower, or a full meal will sober you up before you drive. What does the manual say about this? →
- According to the manual, how much wine contains approximately the same amount of alcohol as a 12-ounce can of beer? →
- What does the Texas manual say about drugs and driving generally? →
- When a person drinks alcohol, which pair of driving abilities does the manual say are among the first to be affected? →
- A minor refuses to provide a breath or blood specimen. This is the minor's second refusal offense. What is the license suspension? →
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