Texas DPS Driver's License Practice Test
Prepare for your Texas Department of Public Safety (DPS) knowledge test with free practice questions built around Texas-specific laws — including the 85 mph speed limit on SH 130 (highest in the nation), the zero-alcohol rule for under-21 DWI, the open-container law that applies to passengers, and why you must go to DPS (not TxDMV) for a driver's license. Texas's 30-question test at 70% is one of the most forgiving pass thresholds nationally — but Texas law has enough unique rules to catch unprepared applicants.
Test at a Glance
- Total Questions
- 30
- Questions to Pass
- 21 correct (70%)
- Passing Score
- 70%
- Min Permit Age
- 15 years
- Based On
- Texas Driver Handbook (2025)
Official source: Texas Department of Public Safety (Driver License Division)
About the Texas Permit Practice Test
Texas driver's licenses are issued by the Texas Department of Public Safety (DPS), Driver License Division — not TxDMV. Texas has TWO separate state agencies with similar names: the Texas Department of Motor Vehicles (TxDMV) handles vehicle title and registration; the Texas Department of Public Safety (DPS) issues driver's licenses. Many Texans go to the wrong agency. If you need a driver's license, you go to a DPS driver's license office. The DPS knowledge test is 30 questions, passing at 70% — meaning you can miss up to 9 questions. Texas's 70% threshold is among the lowest nationally; most other large states require 75%–83%.
Texas DWI under Transportation Code § 49.04 uses the term 'DWI' (Driving While Intoxicated), not DUI. Texas DWI covers impairment by alcohol, controlled substances, or any other substance that impairs driving. For adults 21 and older, the BAC limit is 0.08%. For drivers under 21, Texas has a true zero-tolerance policy: any detectable amount of alcohol is a violation under the Minor Alcohol offense framework — Texas does not use a 0.02% threshold like most states. Texas Intoxication Assault (§ 49.07) and Intoxication Manslaughter (§ 49.08) are second-degree felonies — placing Texas among the states with the most serious vehicular offense classifications. Texas also has the highest posted speed limit in the United States: 85 mph on State Highway 130 (the toll road east of Austin). Multiple Texas rural interstates post 75–80 mph limits.
Texas's open-container law (Transportation Code § 49.031) prohibits any person — including passengers — from possessing an open container of alcohol in the passenger area of a motor vehicle on a public highway, whether the vehicle is moving or parked. Exceptions apply to passengers (not drivers) in hired limousines, chartered buses, and the living quarters of motorhomes. Texas's open-container law specifically applies even while the vehicle is stopped — a common misconception is that passengers may drink while parked. Texas's texting-while-driving ban (HB 62, effective September 1, 2017, Transportation Code § 545.4251) prohibits all electronic messaging while driving statewide, but Texas does NOT have a full handheld ban for adults — holding a phone for a call remains legal on Texas open roads. Texas's provisional license program restricts drivers under 18 from driving between midnight and 5 AM and from carrying more than one non-family passenger under 21 during the first six months.
Key Texas Traffic Laws You Must Know
These rules appear frequently on the Texas knowledge test.
Texas Permit Practice Test — Sample Questions
Select an answer to see instant feedback and explanation.
A Texas resident needs a driver's license. Which agency issues it — the Texas Department of Motor Vehicles (TxDMV) or the Texas Department of Public Safety (DPS)?
What is the highest posted speed limit in the United States, and where is it located in Texas?
Under Texas's DWI zero-tolerance policy for drivers under 21, what BAC level constitutes a violation?
Texas's open-container law (TTC § 49.031) prohibits possessing an open container of alcohol in the passenger area. Does this apply to passengers as well as the driver?
Texas's HB 62 (effective September 1, 2017) bans electronic messaging while driving statewide. Can a Texas adult driver legally hold a phone to their ear for a call on an open road?
Texas's right-side passing rule under TTC § 545.057 permits passing on the right only in which specific circumstance?
Before turning in Texas, how far in advance must you signal — and does the distance change depending on where you are?
Under Texas DWI law, what are Intoxication Assault (§ 49.07) and Intoxication Manslaughter (§ 49.08) classified as?
Texas provisional license holders under 18 may not drive between what hours during the first six months?
Texas requires supervised driving for drivers under 18 in the Parent-Taught Driver Education (PTDE) program. How many total hours of supervised driving are required, and how many must be at night?
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These are a sample of questions from our full test bank.
Take the Full Texas Permit Practice TestFrequently Asked Questions — Texas Permit Practice Test
Why do I need to go to DPS for my driver's license — isn't there a Texas DMV?
Yes, there is a Texas Department of Motor Vehicles (TxDMV), but it handles vehicle title and registration — not driver's licenses. All Texas driver's licenses are issued by the Texas Department of Public Safety (DPS), Driver License Division. Many Texans waste a trip by going to TxDMV for a driver's license. If you need a driver's license, new ID, or learner's permit, you must visit a DPS driver's license office. Visit dps.texas.gov to find the nearest location.
What makes Texas's speed limit law unique, and what is SH 130?
Texas has the highest posted speed limit in the United States — 85 mph on State Highway 130, a toll road running east of Austin through Caldwell and Williamson counties. Multiple other Texas rural interstates (I-10 in West Texas, sections of I-20) post 75–80 mph limits. Texas's high speed limit reflects the state's vast distances and rural highway design. The 85 mph SH 130 limit is a tested fact on the DPS knowledge exam because it distinguishes Texas from every other state.
How does Texas's under-21 DWI zero-tolerance policy differ from most other states?
Most states set an under-21 BAC threshold at 0.02% — any reading at or above 0.02% is a violation. Texas's zero-tolerance policy has no such minimum threshold: any detectable amount of alcohol is a violation for drivers under 21, regardless of the specific BAC reading. A driver under 21 with even a trace of alcohol in their system can be charged under Texas's Minor Alcohol offense framework, which is stricter than the 0.02% approach used by most neighboring states.
Does Texas's open-container law apply to passengers in the back seat?
Yes. Texas Transportation Code § 49.031 prohibits any person — including passengers seated in the back seat — from possessing an open container of alcohol in the passenger area of a motor vehicle on a public highway, whether the vehicle is moving or parked. Exceptions apply only to passengers (not drivers) in hired limousines, chartered buses, and the living quarters of motorhomes. The most common misconception is that 'passengers can drink' — under Texas law, they cannot in most vehicles.
What is the difference between Texas DWI and DUI?
Texas uses 'DWI' (Driving While Intoxicated) as the primary impaired driving charge under Transportation Code § 49.04 for adults. 'DUI' in Texas is sometimes informally used but it is technically a separate, lesser charge used specifically for drivers under 21 with any detectable alcohol (the Minor Alcohol offense). For all adult impaired driving — whether by alcohol or drugs — the charge is DWI, not DUI. Commercial drivers face a 0.04% DWI limit.
Can Texas adults legally hold a phone for a call while driving?
Yes — on Texas open roads, adult drivers may legally hold a phone to their ear for a voice call. Texas HB 62 (TTC § 545.4251), effective September 1, 2017, bans only electronic messaging (texting, emailing, social media posting) while driving statewide. Texas does not have a full statewide handheld phone ban for adult drivers. However, some Texas cities — including Austin and San Antonio — have local ordinances that go further and prohibit all handheld use. Always check local rules in Texas cities.
How many questions are on the Texas DPS knowledge test and what is the passing score?
The Texas DPS driver's license knowledge test has 30 questions. You must answer at least 21 correctly — a 70% passing score — to pass. This 70% threshold is among the lowest for any major state (most require 75%–83%), meaning up to 9 wrong answers are permitted. Despite the lower threshold, Texas-specific laws (SH 130 speed, zero-tolerance under-21 DWI, open container rules) can catch unprepared applicants.
Does Texas require driver education for new teen drivers?
Yes. Texas drivers under 18 must complete a state-approved driver education course before applying for a learner's permit. Options include classroom-based programs and Parent-Taught Driver Education (PTDE). The PTDE program requires 32 hours of classroom instruction and 30 hours of supervised behind-the-wheel practice (10 at night). Adults 18 and older are not required to complete driver education but must pass both the knowledge and road skills tests at DPS.
What is Texas's signaling requirement before a turn?
Texas requires two different signal distances depending on location: at least 100 feet before a turn in a city or town, and at least 200 feet before a turn on a highway outside city limits. This two-distance rule is Texas-specific — many other states use a single distance for all roads. Early signaling is especially important at the higher speeds common on Texas highways.
What is a Texas Provisional License and what restrictions apply?
Texas issues a Provisional License to drivers ages 16–17 who have passed the DPS knowledge and road skills tests. For the first 6 months: no driving between midnight and 5 AM; no more than one passenger under 21 who is not an immediate family member. After 6 months of violation-free driving, both restrictions lift. The provisional license automatically converts to a standard Class C license at age 18. Violations of provisional restrictions extend the restriction period.
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