Texas Permit Practice Test: Alcohol and Drugs (2026)

Question 1 of 17

At what blood alcohol concentration (BAC) is a driver 21 or older legally intoxicated in Texas?

1. 0.10 or more
2. 0.08 or more
3. 0.05 or more

Question 2 of 17

How much alcohol may a driver under 21 have in their system in Texas?

1. Up to 0.02
2. Up to 0.05
3. None: any detectable amount is an offense

Question 3 of 17

For alcohol laws, who is a minor in Texas?

1. Anyone under 21
2. Anyone under 18
3. Anyone under 16

Question 4 of 17

When is an open container of alcohol in the passenger area illegal on a public highway?

1. Only while the vehicle is moving
2. Always, whether the vehicle is moving, stopped or parked
3. Only if the driver is drinking

Question 5 of 17

About how long does the body take to get rid of the alcohol in one drink?

1. About 15 minutes
2. About four hours
3. About one hour

Question 6 of 17

What will sober up a person who has been drinking?

1. Only time
2. Black coffee
3. A cold shower or exercise

Question 7 of 17

What happens to an adult who refuses a breath or blood test after a DWI arrest?

1. Nothing, if they are not convicted
2. License suspended for 180 days, up to 730 days for later refusals
3. A $50 fine only

Question 8 of 17

An adult takes the test and the result is 0.08 or more. What administrative suspension can follow?

1. 7 days
2. No suspension until trial
3. 90 days, up to 365 days for later offenses

Question 9 of 17

What is the possible penalty for a first DWI conviction in Texas?

1. A fine up to $2,000 and 72 hours to 180 days in jail
2. A warning
3. A $100 fine only

Question 10 of 17

Which contains about the same amount of alcohol as a 12-ounce can of beer?

1. A 12-ounce glass of wine
2. A 5-ounce glass of wine
3. Three ounces of liquor

Question 11 of 17

A minor's breath test shows a detectable amount of alcohol below 0.08. For a first offense, how long is the license suspended?

1. 7 days
2. Two years
3. 60 days

Question 12 of 17

What happens the first time a minor refuses to give a breath or blood specimen?

1. License suspended for 180 days
2. License suspended for 30 days
3. Nothing

Question 13 of 17

What happens if you mix alcohol with tranquilizers or barbiturates?

1. The alcohol is cancelled out
2. The depressant effects increase
3. You stay more alert

Question 14 of 17

Does caffeine make a drunk driver safe to drive?

1. Yes, two cups are enough
2. Yes, if taken with food
3. No, it does not make a drunk driver sober

Question 15 of 17

What should you do with over-the-counter medicines such as antihistamines before driving?

1. Read the labels: many cause drowsiness
2. Nothing; only prescription drugs matter
3. Take a double dose to feel better faster

Question 16 of 17

What is one of the first effects of alcohol on a driver?

1. Better reaction time
2. Loss of judgment and impaired vision
3. Sharper hearing

Question 17 of 17

What is the penalty for buying or giving alcohol to a minor?

1. A $50 fine
2. No penalty if the minor is 20
3. A fine up to $4,000 and/or up to one year in jail