Oklahoma CDL Practice Test
Free practice questions for the Oklahoma commercial driver license written exams — general knowledge, air brakes, combination vehicles, and every endorsement.
Oklahoma's written knowledge test is a straightforward assessment of your driving knowledge and understanding of Oklahoma traffic laws. The Oklahoma Department of Public Safety (DPS) administers a 50-question written test with an 80% passing requirement, making preparation and study essential for success. Oklahoma offers convenient online testing options through Service Oklahoma, with the ability to take the test online twice before requiring in-person testing for additional attempts. This comprehensive guide covers all aspects of Oklahoma's permit testing, including test structure, passing scores, fees, age requirements, available languages, and retake policies. Whether you're a first-time applicant or preparing to retake the exam, this guide will help you understand what to expect and how to prepare effectively.
About this section of the Oklahoma test
Oklahoma requires a Commercial Driver's License (CDL) for operators of certain specialized vehicles including buses and large trucks. The CDL written test is more extensive than the standard permit test and covers federal and state regulations for commercial vehicle operation. CDL applicants must be at least 18 years old (21 for some commercial categories) and meet medical certification requirements. Additional CDL endorsements are available for hazardous materials, tanker vehicles, passenger transport, and double/triple trailers. Motorcycle endorsements are not available on CDL licenses; motorcycles are licensed under the standard driver license system.
Start practicing
Open the Oklahoma practice test — pick car, motorcycle, or CDL, then drill quick quizzes or full simulated exams.
Read the source manual
Browse the official Oklahoma driver manual — every practice question deep-links to the page that explains the rule.
Frequently asked questions
- How many questions are on the Oklahoma permit test?
- The Oklahoma written knowledge test contains 50 multiple-choice questions covering traffic laws, road signs, safe driving practices, and the effects of alcohol and drugs on driving.
- What's the passing score for the Oklahoma written test?
- You must score 80% on the Oklahoma knowledge test, meaning you need to answer at least 40 out of 50 questions correctly to pass.
- How much does the Oklahoma written knowledge test cost?
- The written test fee is $4 and includes a vision test. The learner's permit fee is $42.50 (separate). A $4 fee is added to your account for each failed attempt and is due at the time of issuance.
- How old do I have to be to take the Oklahoma permit test?
- You must be at least 14 years old to apply for a learner's permit in Oklahoma. You must be at least 16 years old to apply for a driver's license.
- Can I take the Oklahoma DMV test in Spanish or other languages?
- Yes, the Oklahoma written test is available in English, Spanish, Hindi, and Vietnamese. You can select your preferred language when taking the test online or at a Service Oklahoma location.
- How many times can I retake the Oklahoma written test?
- You can retake the test as many times as needed. You must wait at least one day before retrying. Online testing is limited to 2 attempts; after two online failures, you must visit a Service Oklahoma location in person for additional attempts.
- Is the Oklahoma permit test online or in person?
- Oklahoma offers both options. You can take the test online through the Service Oklahoma portal with no additional fee. You may take the online test up to twice; after two failures, you must visit a Service Oklahoma location in person.
- What documents do I need to bring to the Oklahoma DMV?
- For online testing, you'll need valid identification and proof of your Social Security Number for verification. For in-person testing at Service Oklahoma, bring valid identification (such as a driver's license, passport, or birth certificate), proof of your Social Security Number, and proof of Oklahoma residency. Contact Service Oklahoma for a complete list of acceptable documents.
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