California CDL General Knowledge Practice Test 3 2026

This practice round leans into the questions future Class A and Class B drivers see most, making it a strong CDL class A practice test and CDL class B practice test companion for California applicants. If you have been searching for a CDL a practice test that goes beyond generic trivia, this session is built around the test questions for CDL that actually carry weight on exam day.

The material tracks straight back to the California Commercial Driver Handbook, covering the mechanics, safety judgment, and vehicle-handling knowledge that both Class A combination drivers and Class B straight-truck drivers need before their skills test. Because every CDL class sits for the same written general knowledge exam, this session works whether you are aiming for a Class A rig or a Class B single vehicle down the road.

Remember, the underlying California CDL general knowledge exam is 50 questions with an 80 percent passing threshold, or 40 correct answers, regardless of which class you eventually drive. Push through this practice test now, then carry that same preparation into your next study session before scheduling your permit exam.

Keep going:

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

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