CDL Written TestPre-Trip InspectionELDT Theory
Everything You Need to Pass Your CDL Test.
Study with FMCSA-based guides, take realistic practice tests, master pre-trip inspections, and prepare for your CDL exam — all in one place.
How CDLTest360 helps you pass
- Written knowledge test
- Pre-Trip Inspection trainer
- ELDT Theory practice
- Missed-question review
- Realistic exam mode
- Works on any phone
CDLTest360 at a Glance
Everything you need to prepare for the CDL, in one focused study app.
- CDL practice tests
- Pre-Trip Inspection Trainer
- ELDT Theory
- Air Brakes
- HazMat
- Combination Vehicles
- State CDL Guides
- Study articles & blog
- Realistic Exam Mode
- Missed-question review
- Progress tracking
- Works on any phone
What you get
Quiz modules
Short topic modules with practice and exam modes.
Missed-question review
Re-drill only the questions you got wrong.
PTI phrase trainer
Tap a component, recall the wording, reveal the checklist.
How it works
- 1Try it free
Start answering CDL questions immediately — no account needed.
- 2Sign in to save progress
Create an account to save missed questions and continue on any device.
- 3Unlock the full course
$39.99 for 90 days or $19.99 per month. Cancel any time.
CDL practice tests
View all →- General Knowledge Practice Test
- Air Brakes Practice Test
- Combination Vehicles Test
- HazMat Endorsement Test
- Tanker Endorsement Test
- Doubles & Triples Test
- Passenger Endorsement Test
- School Bus Endorsement Test
- Pre-Trip Inspection Guide
- ELDT Theory Practice Test
- Florida CDL Practice Test
- Texas CDL Practice Test
- California CDL Practice Test
FAQ
- Is CDLTest360 free to try?
- Yes. You can practice a set number of CDL questions for free without creating an account. Unlock the full course when you're ready.
- Which CDL topics are covered?
- General Knowledge, Air Brakes, Combination Vehicles, ELDT Theory, and the pre-trip inspection. Questions come from public FMCSA regulations and state CDL manuals.
- Does it work for every state?
- Yes. The written knowledge test is based on the same FMCSA rules in every state. State-specific CDL manuals are available inside the app.
- How does the exam mode work?
- Exam mode simulates the real test: 50 questions, 80% to pass, score revealed at the end, and a review of every question you missed.
- How much does full access cost?
- $39.99 for a 90-day pass or $19.99 per month. See the pricing page for details.
For CDL schools
Create a school, invite students, manage your own question banks, and see how each student is progressing — all in one place.