Idaho CDL Practice Test 2026
Pass your Idaho commercial driver's license exam with our free, updated practice tests. Simulate the real DMV experience.
100% Free
No subscription required. Unlimited practice attempts.
Based on 2026 Manual
Questions updated for the current Idaho CDL handbook.
State Valid
Valid for all Idaho DMV/DPS locations.
Select a Practice Test
General Knowledge
50 QuestionsRequired for all CDL classes. Covers vehicle control, hazardous materials basic, and safety.
Air Brakes
25 QuestionsRequired if you plan to drive a vehicle equipped with air brakes.
Combination Vehicles
20 QuestionsRequired for driving Class A tractor-trailer combinations.
Hazmat
30 QuestionsFor hauling hazardous materials. One of the toughest endorsements.
Getting Your CDL in Idaho
To get your Commercial Driver's License (CDL) in Idaho, you must pass both the written knowledge exams and the driving skills test. The written tests based on the Idaho CDL Handbook are the first step.
Common Questions about the Idaho CDL
Do I need to take all the tests?
No. The General Knowledge test is required for everyone. Other tests depend on the vehicle you plan to drive (e.g., Air Brakes if your truck has them, Combination if you drive a tractor-trailer).
How to Prepare
- Read the official Idaho CDL manual carefully.
- Take our free practice tests until you consistently score above 80%.
- Focus on the "Air Brakes" section if applicable, as it's a common failure point.