This page is for Texans getting ready for the written knowledge exam for a Class C driver license. Many people call it the TX DMV test. You need a score of 70% or better to pass. Here you will find free practice sets sorted by topic, worked explanations of sample questions, a short study plan, and plain answers about retakes and renewal. The rules on this page come from Texas DPS sources.
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
| Item | Detail | Source · Verified |
|---|---|---|
| Passing score (Knowledge exam (Class C, M, A/B rules)) | 70% or better[1] | Texas Department of Public Safety (DPS), Driver License Division · Oct 25, 2026 |
| Retake fee (Class C driver license) | New application and fee after 90 days or 3 failed exams[1] | Texas Department of Public Safety (DPS), Driver License Division · Oct 25, 2026 |
| Retake policy (Class C driver license) | Application held 90 days; new application and fee after 3 failed exams[1] | Texas Department of Public Safety (DPS), Driver License Division · Oct 25, 2026 |
| Validity (Class C driver license) | 8 years[1] | Texas Department of Public Safety (DPS), Driver License Division · Oct 25, 2026 |
| Renewal (Class C driver license) | In person, or online/mail/phone if eligible; office visit at least every 16 years[1] | Texas Department of Public Safety (DPS), Driver License Division · Oct 25, 2026 |
| Delivery (Knowledge exam) | At a DPS office or with a third-party provider[2] | Texas Department of Public Safety (DPS), Driver License Division · Oct 25, 2026 |
According to Texas Department of Public Safety (DPS), Driver License Division, “You must score a grade of 70 percent or better to pass any knowledge exam.”[1]
Many people search for the TX DMV test, but Texas driver licenses are issued by the Driver License Division of the Texas Department of Public Safety (DPS). The knowledge exam checks that you understand Texas traffic laws, road signs and safe driving before you take the driving exam.
Where you test. You can complete the testing requirements at a DPS office or with a third-party provider. Before you book, check the DPS Apply for a Texas Driver License page to see which tests a provider can give you and what you need to bring.
Scoring. DPS states that you must score 70 percent or better to pass any knowledge exam. That covers the Class C test and the motorcycle (Class M) and commercial (Class A/B) rules tests.
Retakes. If you do not pass the knowledge and driving exams on your first attempt, DPS holds your application for 90 days. After 90 days or 3 failed exams, you must submit a new application and pay the fee again. DPS lists its current fees on its website, so confirm the amount before you go.
Validity and renewal. A Texas driver license must be renewed every 8 years. If you are eligible, you can renew online, by mail or by phone. You must still appear at a driver license office at least once every 16 years for a vision exam and to update your photo, signature and fingerprints.
Other requirements, such as age-based steps, driver education and identity documents, depend on your situation. Read the official DPS page before you book.
Prepare for the TX DMV - Texas Department of Motor Vehicle exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Question: When approaching a school zone with children present, what is the typical speed limit?
Answer: A. 20 mph
Explanation:
A, 20 mph, is correct. When children are present or the school zone lights are flashing, the posted limit in a school zone is commonly 20 mph. You must slow down and be ready to stop for a child who steps into the road. B, 30 mph, is a common limit on ordinary city streets, not a school zone limit. C, 40 mph and D, 50 mph are far too fast for an area where children are walking or crossing. The rule to remember: the school zone sign sets the limit, and it applies during the times shown or while the lights flash. Even below the limit, drive slowly enough to stop for a child.
Question: What is the maximum posted speed limit allowed on any Texas road?
Answer: C. 85 mph
Explanation:
C, 85 mph, is correct. Texas allows an 85 mph limit on certain roads, such as a toll road stretch built for higher speeds. That is the highest posted limit in the state. A, 75 mph and B, 80 mph are real limits on some Texas highways, which makes them tempting, but neither is the maximum. D, 90 mph is not a posted limit on any Texas road. The rule to remember: the posted limit is the most you may drive in ideal conditions, not a target. Slow down for traffic, weather, work zones and curves, because driving too fast for conditions is illegal even under the limit.
Question: How should you properly check your engine oil level?
Answer: C. Check it when the engine is cold or has sat off for several minutes
Explanation:
C is correct. Check the oil with the car on level ground and the engine off and cool, or after it has sat for several minutes. This gives the oil time to drain back into the oil pan, so the dipstick shows the true level. A is wrong because right after a long drive much of the oil is still in the upper engine, so the dipstick reads low, and hot parts can burn you. B is wrong because a running engine is pumping oil through itself, so you cannot get an accurate reading, and the moving parts are a hazard. D is wrong because reading the dipstick is a basic task any driver can do. The rule to remember: engine off, car level, wait, then wipe the dipstick, put it back in and read it.
Start with the official Texas Driver Handbook from DPS. Read it one section at a time, and after each section take the matching practice set:
For each question you miss, find the rule in the handbook and write it down in your own words. Retake that set later in the week. When your topic scores hold steady, take the mixed practice test somewhere quiet. Aim to score well above the 70% passing mark, so a few unfamiliar questions on test day do not decide your result. The day before, review your list of missed rules instead of learning new material. Also confirm what DPS or your third-party provider asks you to bring.
You need 70% or better. DPS states that you must score a grade of 70 percent or better to pass any knowledge exam. That includes the Class C test and the motorcycle and commercial rules tests. Keep practicing until you score comfortably above that mark in every topic, not just your strongest ones.
No. Driver license testing in Texas is run by the Driver License Division of the Texas Department of Public Safety (DPS). You can complete the testing requirements at a DPS office or with a third-party provider. People often search for the TX DMV test, but the rules, forms and appointments come from DPS.
If you do not pass the knowledge and driving exams on your first attempt, DPS holds your application for 90 days, so you can retest under the same application. After 90 days or 3 failed exams, you must submit a new application and pay the fee again. Check the DPS website for current fees.
Yes. DPS says you may complete the testing requirements at a DPS office or with a third-party provider. Which tests a provider can give you depends on your age and situation. Confirm the details on the DPS Apply for a Texas Driver License page before you book, and ask the provider what you need to bring.
A Texas driver license must be renewed every 8 years. If you are eligible, you can renew online, by mail or by phone. You must still appear at a driver license office at least once every 16 years for a vision exam and to update your photo, signature and fingerprints.
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