Oklahoma CDL Practice Test (OK) 2026

4.7 out of 5 (105 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Are you gearing up to earn your CDL in 2026? Kickstart your preparation with our first Oklahoma CDL practice test, a crucial tool for all aspiring commercial drivers. Dive into a comprehensive set of 20 questions that mirror the real permit test, designed to prepare you for any class of driver's license, whether Class A or B, along with any endorsements you seek. This initial DMV permit practice test focuses on general knowledge, a mandatory step for all candidates. Our Oklahoma CDL practice test is not just a random set of driver's license questions; it encompasses a wide array of topics crucial for every trucker. From pre-trip vehicle inspection to mastering vehicle control, shifting gears, navigating hills and downgrades, to essential communication skills with fellow drivers. It also emphasizes the importance of controlling speed and being aware of drug and alcohol regulations - all integral parts of a trucker's knowledge base. An added advantage is our Oklahoma CDL practice test's format. It follows the multiple-choice and true/false style, exactly like the actual DMV permit test. This not only aids in familiarizing yourself with the test pattern but also hones your skills in eliminating incorrect options to zero in on the right answer. Plus, unlike the time-bound pressure of the actual CDL written test in 2026, here, you can take your time to thoroughly understand and answer each sample permit test question. This approach significantly enhances your learning and retention. Keeping pace with the latest, our Oklahoma DMV practice test is updated for 2026, reflecting the newest driving laws and regulations. Rest assured, you're studying the most up-to-date material, putting you ahead in your preparation game. Remember, every great trucker began with the basics. This Oklahoma CDL practice test is your first step toward mastering them in 2026. As you progress through the questions, you'll not only improve your knowledge but also build confidence, setting a solid foundation for your CDL journey!
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Sample Oklahoma CDL Test Questions - General Knowledge

Question 1

Which conditions are brake defects that should be found during a vehicle inspection?

  1. A A cracked brake drum
  2. B Oil, grease, or brake fluid on brake shoes or pads
  3. C Brake shoes that are dangerously thin, missing, or broken
  4. D All of the above

Correct answer: D – All of the above

The Oklahoma CDL manual identifies all three conditions as brake defects. A drum must not be cracked, and brake shoes or pads must be free of oil, grease, and brake fluid. Shoes that are dangerously thin, missing, or broken also cannot provide dependable braking. Any of these findings requires attention before the vehicle is operated.

Source: Oklahoma Commercial Driver’s License Manual — Section 2, § 2.1.2, “Vehicle Inspection Guide—Bad Brake Drums or Shoes”

Question 2

What happens when a straight vehicle enters a front-wheel skid?

  1. A It immediately spins around
  2. B Its rear end slides sideways while the front wheels grip
  3. C It follows the direction in which the steering wheel is turned
  4. D It continues straight even when the steering wheel is turned

Correct answer: D – It continues straight even when the steering wheel is turned

During a front-wheel skid, the front of the vehicle tends to continue straight regardless of steering-wheel movement. On a very slippery surface, the driver may be unable to follow a curve or make a turn. To recover, stop turning or braking excessively and allow the vehicle to slow without causing another skid.

Source: Oklahoma Commercial Driver’s License Manual — Section 2, § 2.19.3, “Front-wheel Skids”

Question 3

An unblocked cargo article on a flatbed is 8 feet long. What is the minimum number of tie-downs required?

  1. A 1
  2. B 2
  3. C 3
  4. D 4

Correct answer: B – 2

An unblocked article that is longer than 5 feet but no longer than 10 feet requires at least two tie-downs, regardless of its weight. Longer articles require additional securement according to their length. The Oklahoma CDL manual also emphasizes using enough tie-downs to keep cargo from shifting or falling during transportation.

Source: 49 CFR § 393.110(b)(2)(ii) – Additional requirements for determining the minimum number of tiedowns, Oklahoma Commercial Driver’s License Manual — Section 3, § 3.3.2, “Cargo Tie-down”

Question 4

Which vehicle fire may require a large amount of water to cool it completely?

  1. A A burning tire
  2. B A gasoline fire
  3. C An energized electrical fire
  4. D An unidentified hazardous-material fire

Correct answer: A – A burning tire

A burning tire must be cooled, and the CDL manual warns that this may require a large amount of water. Water should not be used on a gasoline fire because it can spread the flames or on an energized electrical fire because of shock danger. If hazardous materials are involved and the proper extinguishing method is uncertain, wait for trained firefighters.

Source: Oklahoma Commercial Driver’s License Manual — Section 2, § 2.21, “Fires—Use the Right Fire Extinguisher”

Question 5

What condition does a ROAD NARROWS warning sign identify?

This sign warns drivers that _____________.
  1. A Traffic-control signals are ahead
  2. B The pavement width decreases ahead
  3. C A hazardous-material route begins ahead
  4. D Traffic is entering from a freeway ramp

Correct answer: B – The pavement width decreases ahead

The ROAD NARROWS sign warns that the pavement becomes abruptly narrower ahead. It is used where opposing vehicles might not be able to pass through the narrowed area at the same time without reducing speed. On Oklahoma roads, commercial drivers should recognize the reduced clearance and adjust their speed and position as conditions require.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition with Revision 1 — § 2C.17, “ROAD NARROWS Sign (W5-1)”

Question 6

Which set belongs on the emergency-equipment check in the Oklahoma CDL manual?

  1. A Flashlight, tire gauge, and tire-sealant can
  2. B First-aid supplies, pain reliever, and drinking water
  3. C Fire extinguisher, warning devices, and spare fuses when the vehicle lacks circuit breakers
  4. D Cellphone, wheel chock, and portable work light

Correct answer: C – Fire extinguisher, warning devices, and spare fuses when the vehicle lacks circuit breakers

The emergency-equipment check includes a properly charged and rated fire extinguisher and approved warning devices, such as three reflective triangles. Spare electrical fuses are included unless the vehicle uses circuit breakers. These items should be present, properly stored, and ready for use before the vehicle is driven.

Source: Oklahoma Commercial Driver’s License Manual — Section 2, § 2.1.4, “Emergency Equipment”

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