Oklahoma General Knowledge Test
Oklahoma's I-35, I-40, and I-44 converge in Oklahoma City — you'll need to know them cold for your CDL test.
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Study for Oklahoma's CDL General Knowledge test with our free practice exam. It's based on the real Oklahoma CDL handbook.
Key Topics
- •Air brakes & combination vehicles (common in Oklahoma)
- •Safe driving in Oklahoma weather (ice, fog, tornadoes)
- •Vehicle inspections & cargo securement
About the Oklahoma General Knowledge Test
Topics Covered
- ✓Air Brakes – Required for most Oklahoma trucks because of heavy loads on I-40 and rural highways.
- ✓Safe Driving Practices – Helps you react to Oklahoma's sudden tornadoes, ice storms, and dense fog.
- ✓Vehicle Inspections – State law demands a pre-trip inspection; our test covers every step.
- + 3 more topics
📘 Study Tips & State Info
Start with the Oklahoma CDL Handbook – it's your only source for test questions. Our practice test covers the same material, so use it to check your understanding. Focus on air brakes and combination vehicles: about half the test relates to these topics, and they're crucial for Oklahoma's heavy truck traffic on I-35 and I-44.
Take the practice test at least three times. Review every wrong answer by looking up the handbook section. Oklahoma's DPS doesn't provide explanations, so we built ours into the results page. Pay special attention to safe driving in bad weather – it's a big part of the real exam.
Schedule your DPS appointment early. Many Oklahoma testing centers book weeks out. Don't rush; give yourself time to study consistently. A little each day beats cramming.
Oklahoma DPS administers the CDL General Knowledge test at most exam centers. You'll need to bring your Oklahoma driver's license, social security card, and proof of residency. The test is computer-based and you'll get your score immediately. No appointment is required for the written test, but skills tests need one – book online at dps.ok.gov.
Fees: $25 for the Commercial Learner's Permit, plus $50 for the CDL (if you pass). Some smaller offices may only offer testing on certain days. Check the DPS website for your closest location: Oklahoma City, Tulsa, Lawton, Stillwater, and others.
You can take the test in English or Spanish. If you fail, you can retake it after one day. There's no limit on retakes within a year, but each attempt costs $25. Use our practice test first – it's free and saves you money.
About the Oklahoma General Knowledge Test
Oklahoma's roads test your skills every day. You'll drive on flat plains, winding hills, and busy interstates like I-35, I-40, and I-44. Our state also brings sudden ice storms, tornado watches, and blinding fog. That means your CDL General Knowledge exam covers more than just basic rules — it prepares you for real Oklahoma conditions.
The test has 50 questions, and you need 40 correct to pass (80%). It covers air brakes, safe driving, vehicle inspections, hauling cargo, and more. Many Oklahoma truckers haul oil field equipment or agricultural goods, so expect questions about heavy loads and hazardous materials too.
Our practice test mirrors the official Oklahoma CDL exam. Every question comes straight from the state handbook. You'll see the same format, the same wording, and the same emphasis on topics that matter here. Use it to find weak spots before you go to the DPS office.
Don't waste time or money on retakes. Take our free test now, review your results, and walk into your exam with confidence. Oklahoma drivers know the terrain — now you'll know the rules.
Topics Covered
Study Tips
Start with the Oklahoma CDL Handbook – it's your only source for test questions. Our practice test covers the same material, so use it to check your understanding. Focus on air brakes and combination vehicles: about half the test relates to these topics, and they're crucial for Oklahoma's heavy truck traffic on I-35 and I-44.
Take the practice test at least three times. Review every wrong answer by looking up the handbook section. Oklahoma's DPS doesn't provide explanations, so we built ours into the results page. Pay special attention to safe driving in bad weather – it's a big part of the real exam.
Schedule your DPS appointment early. Many Oklahoma testing centers book weeks out. Don't rush; give yourself time to study consistently. A little each day beats cramming.
Oklahoma Specific Information
Oklahoma DPS administers the CDL General Knowledge test at most exam centers. You'll need to bring your Oklahoma driver's license, social security card, and proof of residency. The test is computer-based and you'll get your score immediately. No appointment is required for the written test, but skills tests need one – book online at dps.ok.gov.
Fees: $25 for the Commercial Learner's Permit, plus $50 for the CDL (if you pass). Some smaller offices may only offer testing on certain days. Check the DPS website for your closest location: Oklahoma City, Tulsa, Lawton, Stillwater, and others.
You can take the test in English or Spanish. If you fail, you can retake it after one day. There's no limit on retakes within a year, but each attempt costs $25. Use our practice test first – it's free and saves you money.