Texas DWI Practice Quiz
10 questions on Texas DWI law from our DL-7-verified bank. Answers and chapter citations follow each question.
1. In Texas, a person age 21 or older is considered legally intoxicated at:
A. 0.08 ✓
B. 0.06
C. 0.04
D. 0.10
Why: A person age 21 and over is legally intoxicated at 0.08 BAC or more (DL-7 Chapter 10).
2. A first-offense DWI in Texas is classified as a:
A. Class C misdemeanor
B. Class B misdemeanor ✓
C. Class A misdemeanor
D. State jail felony
Why: A 1st DWI is a Class B misdemeanor with fine up to $2,000 and 72 hours to 180 days in jail (DL-7 Chapter 10, Table 31).
3. A third DWI offense in Texas is classified as a:
A. Class A misdemeanor
B. State jail felony
C. Third-degree felony ✓
D. Second-degree felony
Why: A 3rd DWI is a third-degree felony with fine up to $10,000 and 2 to 10 years in TDCJ (DL-7 Chapter 10, Table 31).
4. DWI with a passenger under age 15 is a:
A. Class A misdemeanor
B. Class B misdemeanor
C. Third-degree felony
D. State jail felony ✓
Why: DWI with passenger under 15 is a state jail felony, fine up to $10,000, 180 days to 2 years in state jail (DL-7 Chapter 10, Table 31).
5. Open container of alcohol in the passenger area is illegal:
A. Whether the vehicle is being operated, stopped, or parked on a public highway ✓
B. Only on public highways while moving
C. Only while driving
D. Only if you're under 21
Why: Open container in the passenger area is illegal regardless of whether the vehicle is operating, stopped, or parked on a public highway (DL-7 Chapter 10).
6. Under Texas implied consent, an adult who refuses a breath/blood test on first offense:
A. 90 days suspension
B. 180 days suspension ✓
C. 120 days
D. 2 years
Why: First refusal triggers a 180-day driver license suspension (DL-7 Chapter 10).
7. Which of the following will sober up a person who has been drinking?
A. A cold shower
B. Black coffee
C. Only time ✓
D. Exercise
Why: Cold showers, coffee, and exercise do not sober a person. Only time can minimize the effects of alcohol — about one hour per drink (DL-7 Chapter 10).
8. Intoxication manslaughter (killing another person while DWI) is classified as:
A. Class A misdemeanor
B. Third-degree felony
C. State jail felony
D. Second-degree felony ✓
Why: Intoxication manslaughter is a second-degree felony, fine up to $10,000, 2 to 20 years in TDCJ (DL-7 Chapter 10, Table 31).
9. Taking more than one drug or mixing drugs with alcohol is dangerous because:
A. Different cumulative effects; alcohol can mask the others ✓
B. Alcohol always neutralizes other drugs
C. Effects cancel out
D. Only illegal drugs mix badly
Why: Drugs may have cumulative effects, especially with alcohol. Alcohol can mask other drugs' effects, increasing risk of poor decisions (DL-7 Chapter 10).
10. Even typical social doses of marijuana can affect a driver's:
A. Only physical coordination
B. Concentration, judgment, and sensory/perceptual skills ✓
C. Only reaction time
D. Only night vision
Why: Even typical social doses can affect concentration, judgment, and sensory/perceptual skills needed for careful driving (DL-7 Chapter 10).