Preparing for Oklahoma's Class D Written Knowledge Test? This page helps candidates practise road signs, safe driving, and traffic laws with free OK DMV question sets and worked explanations. You can also check the verified test format, passing score, and retake rules. Separate practice sets cover administrative topics such as registration and renewal, so you can distinguish written-test preparation from help with other services.
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
| Item | Detail | Source · Verified |
|---|---|---|
| Number of questions (Class D Written Knowledge Test) | 20 questions[1] | Service Oklahoma · Oct 27, 2026 |
| Time limit (Class D Written Knowledge Test) | 60 minutes[2] | knowtodrive.com · Oct 27, 2026 |
| Passing score (Class D Written Knowledge Test) | 15 of 20 (75%)[3] | Service Oklahoma · Oct 27, 2026 |
| Retake fee (Class D Written Knowledge Test) | $4 per failed attempt[2] | knowtodrive.com · Oct 27, 2026 |
| Retake policy (Class D Written Knowledge Test) | Unlimited attempts; max 2 online attempts, subsequent attempts in person; 1-day wait between attempts[3] | Service Oklahoma · Oct 27, 2026 |
| Validity (Learner Permit) | Retest required if expired over 3 years[4] | Service Oklahoma · Oct 27, 2026 |
| Renewal (Driver License) | Renew up to 1 year in advance; recommended at least 60 days before expiration[5] | Service Oklahoma · Oct 27, 2026 |
| Delivery (Class D Written Knowledge Test) | Online or in-person; desktop/laptop only; English only[3] | Service Oklahoma · Oct 27, 2026 |
| Score release (Class D Written Knowledge Test) | Immediate[3] | Service Oklahoma · Oct 27, 2026 |
According to Service Oklahoma, “The written exam is a 20-question test that will test you on Oklahoma traffic laws, road rules, road signs, and safe driving practices.”[1]
Service Oklahoma's Class D Written Knowledge Test checks your understanding of Oklahoma traffic laws, road rules, road signs, and safe driving practices. It has 20 questions, and you must answer 15 correctly to pass, a score of 75%. Results are available immediately after you finish.
You can take the test online or in person. The online test requires a desktop or laptop; phones are not supported. The online option is English only. The supplied KnowToDrive Oklahoma FAQ lists a 60-minute time limit. Check Service Oklahoma's Written Test page and the KnowToDrive Oklahoma FAQ for official testing instructions before choosing your delivery option.
If you fail, you can try again after a 1-day wait. Attempts are unlimited, but you may take the online test a maximum of 2 times. After 2 online failures, further attempts must be in person. A $4 Service Oklahoma fee is collected in-office for each failed attempt.
These details describe the written test, not every requirement for obtaining a license. Consult Service Oklahoma's Learner Permit page for application requirements. If your learner permit has been expired over 3 years, Service Oklahoma requires you to retake the written and drive tests.
The content areas below are copied from the official OK DMV content outline published by Service Oklahoma. The right-hand column shows which of our practice sets covers it.
| Official content area | Practice on this site |
|---|---|
| road signs[3] | OK DMV Traffic Signs and Signals Practise recognizing signs and signals and explaining what action each requires. |
| safe driving[3] | OK DMV Road Rules and Traffic Laws Use relevant driving scenarios to practise identifying hazards and choosing a safe response. |
| traffic laws[3] | OK DMV Road Rules and Traffic Laws Practise applying traffic rules to the situation described, rather than memorizing answer positions. |
Prepare for the OK DMV - Oklahoma 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: How far from an intersection must Oklahoma drivers signal before turning?
Answer: B. 100 feet
Explanation:
B is the supplied correct answer: 100 feet. The question asks for the minimum signaling distance before turning at an intersection. Under the rule stated in this practice item, 50 feet is too short. The 150-foot and 200-foot options exceed the stated minimum, so neither answers the minimum-distance question, even though both describe earlier signaling.
Remember the distinction between a required minimum and a distance that exceeds it. This is a site-written practice question, not a real exam question. The supplied official test facts do not verify this signaling rule, so check it against current official Oklahoma driving material before memorizing the distance.
Question: When do Oklahoma vehicle registration renewals expire?
Answer: B. On the last day of the registration month
Explanation:
B is the supplied answer: the last day of the registration month. Within this practice item, the owner's birthday, January 1st, and the purchase anniversary are distractors because none identifies the end of the registration month. However, the supplied official facts do not establish vehicle registration expiration rules. The existing explanation also adds a birth-month connection that those facts do not support.
Treat this item as needing verification before using it to plan a renewal. The general lesson is to distinguish vehicle registration from driver license renewal: the verified license renewal guidance on this page does not establish a registration deadline. Check official registration information for your vehicle.
Question: If you need to visit the Oklahoma DMV on a weekend, which of the following statements is true?
Answer: B. Most DMV offices are closed on weekends.
Explanation:
B is the supplied answer: most offices are closed on weekends. The item contrasts that general statement with claims that all offices open Saturdays, offices open Sundays only, or some operate 24/7. None of those alternatives is supported by the supplied official facts. Those facts also do not establish how common weekend closures are, so this answer should not be treated as verified scheduling guidance.
The useful rule is to check the specific location's published hours before planning a visit. Do not infer an office's availability from this practice answer. This administrative question is separate from practice on road signs, safe driving, and traffic laws.
Start with Service Oklahoma's official driving study material. Read a topic, then use the matching practice set to see whether you can apply it. Use Traffic Signs and Signals for sign recognition and Road Rules and Traffic Laws for rule-based driving scenarios.
For each missed answer, write down the rule you misunderstood. Return to the official material, then explain why the correct choice fits and why the alternatives do not. Revisit questions you answered by guessing as well as those you missed. If an explanation adds a claim you cannot verify, mark it for checking instead of memorizing it.
Keep administrative practice separate from written-test study. Use the registration, location, and renewal sets when those services are relevant to you. Before test day, check the official testing instructions, confirm your delivery option, and review the retake rules. If taking the online test, arrange access to a desktop or laptop.
You need 15 correct answers out of 20, which is 75%. Service Oklahoma describes the written exam as testing Oklahoma traffic laws, road rules, road signs, and safe driving practices. Your results are available immediately after you finish the test.
No. The online written test requires a desktop or laptop computer; mobile phones are not supported. The online option is English only. Service Oklahoma also offers the written test in person, so online testing is not the only available delivery option.
You can retake it after a 1-day wait. Attempts are unlimited, but online attempts are limited to 2. After 2 online failures, you must take further attempts in person. A $4 Service Oklahoma fee is collected in-office for each failed test attempt.
The KnowToDrive Oklahoma FAQ lists a 60-minute time limit for the test. Service Oklahoma says you receive your result immediately after finishing. The written test has 20 questions, and you must answer 15 correctly to achieve the passing score of 75%.
Yes, if your learner permit has been expired over 3 years, Service Oklahoma requires you to retake both the written and drive tests. The supplied facts do not specify the requirements for shorter expiration periods. Consult Service Oklahoma's New Driver License page for your situation.
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