- General Knowledges Test
- Air Brake Practice Test
- Combination Vehicle Practice Test
- Doubles/Triples Endorsement Practice Test
- Hazmat Endorsement Practice Test
- Passenger Endorsement Practice Test
- Pre-Trip Inspection Practice Test
- School Bus Endorsement Practice Test
- Tanker Endorsement Practice Test
- Examen de Práctica CDL
Pass Your Idaho CDL Permit Test with Confidence
Get instant feedback on every question with our free Idaho CDL Practice Test, covering General Knowledge, Air Brakes, Combination Vehicles, and more.
Study smarter, not harder
Reading the Idaho CDL Manual cover to cover is a start, but it’s not enough to guarantee a passing score. Our practice tests help you identify exactly what you know and what you need to review before you walk into the DMV.
Instant feedback on every question
See your answer, the correct answer, and a clear explanation immediately, so you understand the “why” behind every rule.
Covers every endorsement you need
From General Knowledge and Air Brakes to Tanker, Hazardous Material, Passenger, and School Bus, we’ve got practice tests for every part of the Idaho CDL exam.
Built around the official manual
Every question is based on the 2026 Idaho CDL Manual, so you’re studying exactly what you’ll be tested on.
Free pre-trip inspection prep
Get ready for the oral pre-trip inspection exam with dedicated practice tests and instructional videos covering the engine compartment, cab, and trailer.
How it works
- Choose your test
Select from General Knowledge, Air Brakes, Combination, Tanker, Hazardous Material, Doubles/Triples, Passenger, or School Bus.
- Answer real exam-style questions
Work through questions modeled on the official Idaho CDL Manual.
- Review your results
Get instant feedback showing your answer, the correct answer, and a full explanation for each question.
- Retake until you’re ready
Take as many practice tests as you need until you feel confident walking into your official exam.
FAQs
How many questions are on the Idaho CDL General Knowledge test?
The official test has 50 questions, and you’ll need at least 40 correct answers (80%) to pass.
Do I need to complete every endorsement test?
No. Only complete the practice tests for the endorsements required for the vehicle class you intend to drive, such as Tanker, Passenger, or School Bus.
Is the practice test based on the current Idaho CDL Manual?
Yes. Every question aligns with the 2026 Idaho CDL Manual, so you’re studying accurate, up-to-date material.
What happens after I pass the knowledge test?
Once you pass the required knowledge tests, you can obtain your Commercial Learner’s Permit (CLP). You must hold your CLP for at least 14 days before taking the CDL skills test.
Is this practice test really free?
Yes, our Idaho CDL Practice Tests are completely free to use, with no sign-up required.