Oklahoma CDL General Knowledge Practice Test 3 2026

The third stop in the series doubles as a CDL class A practice test and a CDL class B practice test, since every applicant sits for the identical General Knowledge written exam regardless of the class they ultimately earn. Whether you want a cdl a practice test for a tractor-trailer or a Class B run for a straight truck, the written questions are the same.

These test questions for CDL candidates span brakes, space and speed management, hazard perception, and emergency response. Your license class in Oklahoma is decided later by the vehicle you bring and the skills test you pass, not by this written stage, so a solid score here moves every applicant forward. Remember the standard: 50 questions and 80 percent, or 40 correct, to pass under FMCSA rules.

If a question about a specific class of vehicle confuses you, the Oklahoma Commercial Driver License Manual clarifies which rules apply to combinations versus single units. Keep cycling through this 2026 CDL practice test until both Class A and Class B material feels routine.

Keep going:

• Oklahoma CDL Practice Test
• Oklahoma CDL Practice Test 2
• Oklahoma CDL Practice Test 4
• Oklahoma CDL Practice Test 5
• Oklahoma Air Brakes Practice Test
• Oklahoma CDL Combination Practice Test
• Oklahoma CDL Pre-Trip Inspection Practice Test
• Oklahoma Hazmat Practice Test
• Oklahoma Class A CDL Practice Test
• Oklahoma CDL Practice Test

Every question traces back to the Oklahoma CDL Manual - skim the right-of-way and signs chapters before your retake.