Cdl premium

Cdl premium DEFAULT

Get faster turnaround to get your non-CDL hires into behind-the-wheel training.

While traditional trucking schools are struggling to comply with COVID-related social distancing regulations, the CDL Premium program is an easy-to-use, fully online alternative to the classroom phase of CDL training that offers superior value at a much lower cost. Let us take care of the knowledge training, and free up your instructors for the BTW. See how these two companie achieved a 95%-96% pass rate for their new drivers. View case study

Used by these forward-thinking companies nationwide

Self-study program
for your trainees

Instead of giving your new hires tons of outdated printed handouts, give them a modern way to prepare. With 24x7 access, they can study from home or on the go.

CDL Premium Corporate is the no-fail way for your trainees to pass the written portion of their CDL exam – without memorizing a CDL handbook. Premium has a 95.2% success rate and minimal impact on their current job and family responsibilities. It offers 1,000+ exam-like questions based on official CDL manuals, vetted by DMVs, and seen on the official exam.

See why this is the only program of its kind recommended by DMVs and trusted by national driving organizations (1m 15s)

How CDL Premium Corporate works

Start with an Admin account

Gives you full autonomy to manage your own members.

Add Trainee accounts

Begin with just a few seats, then add more when you need them.

Generate invite links

Send invites to the trainees, and they set themselves up. Your job is done.

Sit back, relax and monitor

View their progress and see who's doing well and who's falling behind.

Scale up or down
at any time

Easily expand or reduce the quantities of "seats" by purging off anyone who passes the CDL test to free up that seat for a new hire. If you have multiple locations, you can rotate the “seats” around to sites that are in a more active hiring stage.

Benefits to your hiring process and training:

  • Assurances that non-CDL new hires are prepared for the CDL test before sending/taking them to the exam
  • Reduction of test anxiety for CDL test takers and showing that your company truly cares about their success
  • Ability for a faster turnaround of Week One new hires who come in without a CDL to get them to BTW training.
  • The administrator dashboard allows you to individually look at each trainee and their progress on taking practice CDL tests.

all endorsements

Applies to all CDL knowledge exam types

Use Premium to prepare your new hires for the written CDL exam for Class A, B and C. It covers all nine endorsements. If your state has any specific requirements, like Texas, we cover those, too.

"I recommend this to all my students."

~ Rick Boontjer, Driving instructor

Why your trainees will love CDL Premium

Premium is proven to nearly double a trainee's chances of passing – by quizzing them on the same types of questions they’ll see on the official exam. It uses real questions straight from your state’s official CDL manual and makes studying a breeze. Rather than try to memorize boring facts and numbers, they'll get comfortable answering exam-like questions that range from easy to knuckle-cracking hard - just like this one below:

passing probability analytics

Trainees get smart insights into their weak areas

Detailed explanations reveal the "why" behind every answer

For each question, your students will see an explanation of the right answer immediately after they choose an answer option. We've simplified the vague and complex language of driving rules so they can quickly master the concepts and answer the question correctly next time, no matter how it's worded on the exam.

On a two-way, two-lane road, if you must stop on a hill, how far back should you place your reflective triangles?

Within 500 feet behind the vehicle

Within 250 feet behind the vehicle

Within 100 feet behind the vehicle

Up to one-tenth of a mile.

If you park on the side of the road and the view of your vehicle is obscured by a hill or curve, place a reflective triangle far enough (up to 500 feet) behind your vehicle so it can be seen by other drivers.

What's included in the training program

The industry standard in CDL exam preparation.

✅ CDL Manual

Includes convenient access to the most recent version of the official CDL manual for every US state (online and printable).

✅ Passing Probability

Your trainees get access to their own real-time analytics reports with smart insights into their weak areas.

✅ Challenge BankTM

Your trainee's missed questions are automatically stored for them to review. They’ll know they’re progressing when they get them right the second – or third – time.

✅ Night Mode

Your trainees can give their eyes a much-needed break and keep studying when the room is dark. They'll get better sleep and be more rested for their test.

✅ Voice Over

Listen to the question, answers, hints and explanations read out to you. Great if English is not your native language.

✅ Answer Popularity

Allows your trainees to see how other drivers answered the question they’re on, and which ones most people get wrong.

✅ Driver's Test Anxiety Relief Audio Series

Designed to help prevent or minimize test anxiety. Recorded by Peggy Higgins, an experienced yoga instructor.

✅ Flashcard Mode

These help prove that the trainee is absorbing what they need to - to walk into thrir CDL exam day with confidence.

✅ CDL Marathons

A test that includes all the questions for an endorsment — and cycles through each one.

✅ Questions Hints

When your trainee is not sure how to answer a question, they can give themselves a quick tip to jog their memory and nail the answer.

easy-to-use Admin Dashboard

Bird's eye view on your organization's CDL training stats

No matter how many trainees you have going throughout your operations, Premium will work so your instructors don't have to. The administrator dashboard allows you to individually look at each trainee and their progress on taking practice CDL tests. The main dashboard gives an indication of use of the site while the detailed individual report cards can ensure that a new hire is ready to go take the CDL permit test at the local DMV.

You'll love the simple yet powerful Admin Dashboard. It displays your organization's CDL training statistics and lets you drill down to monitor individual students' progress.

1000+Exam-like questions

95,2%Success rate

64,000+Happy customers

41Realistic practice tests

Individual report cards

Train five or five thousand new hires at the same time, effortlessly

works on all devices

All devices.
One seamless experience.

CDL Premium works on all devices in ways no other exam prep program can. The student progress is autosaved so they can pick up where they left off. The admin dashboard is fully mobile-friendly. If your company already has tablets or old phones, you can hand them to new hires for study - or have them use their own.

A program so effective, even some DMVs are adopting it

"This is the only online practice test website that our Department of Transportation officially approved."

Indiana Bureau of Motor Vehicles

"These practice driving skills exams make studying easier and less stressful."

Kansas Department of Transportation

"First-time driver or need a refresher course? Test your knowledge on the Rules of the Road here."

Trainees agree our questions are nearly identical to the real exam

"Absolutely amazing. Passed my CLP test with ease. People who were testing that had spent 3 weeks in truck driving school were at the DMV taking the written exam for the 3rd, 4th, 5th, and 6th times. Upset a few people when I walked out and told my husband I passed!" - Miley P., Texas

Watch more of their stories →

"I wanted the best possible chance to pass. I did pass yesterday, on the first try. All of the questions were almost identicalto the style and the content that I had on the practice test."

James Wicker

CDL Premium member from West Virginia

"I went to Driving-Tests, studied, got 40 out of 42 right the next day.Now I have my permit, I recommend it to anybody!"

Mark H.

CDL Premium member from Florida

"I don't normally do these things, but I just wanted to say that the program was awesome. I only had two days before I took my test... I've never felt more confidentgoing into the test. It worked, I only got one wrong. This was legit!"

Jon Griesser

CDL Premium Member from Connecticut


Let us help you train your new hires for their CDL knowledge exam

Order the CDL Premium Corporate program today and get your trainees ready for their CDL exam faster and more effectively. No tedious setup process involved.

Recommended by DMVs. Trusted by over 65,000 students.

Admin account

50 / month

Plus $35/month for each trainee account you create.

Purchase Now

Fully online, nothing to set up

Invite as many trainees as needed

Trainees create accounts via your invite links

Monitor trainee progress via Admin Dashboard

Reassign empty seats to new trainees at any time

Premium support

Paying by cheque/purchase order?

Request custom quote

Includes discounted pricing on large orders

Request a quote

Fully online, nothing to set up

Invite as many trainees as needed

Trainees create accounts via your invite links

Monitor trainee progress via Admin Dashboard

Reassign empty seats to new trainees at any time

Premium support

Admin account

50 / month

Plus $35/month for each trainee account you create.

Purchase Now

Fully online, nothing to set up

Invite as many trainees as needed

Trainees create accounts via your invite links

Monitor trainee progress via Admin Dashboard

Reassign empty seats to new trainees at any time

Premium support

Paying by cheque/purchase order?

Request custom quote

Includes discounted pricing on large orders

Purchase Now

Fully online, nothing to set up

Invite as many trainees as needed

Trainees create accounts via your invite links

Monitor trainee progress via Admin Dashboard

Reassign empty seats to new trainees at any time

Premium support

Frequently asked questions

Whom is the CDL Premium Corporate program for?

  • Transportation services companies
  • Independent owner-operators
  • CDL schools
  • School districts doing school bus driver training

What is included for the trainees?

Each trainee you invite gets full access to our CDL Premium program:
  • 1,000 exam-like questions
  • 41 realistic practice tests
  • VoiceOver & Night Mode
  • CDL Marathon tests
  • CDL Exam Simulator
  • 9 CDL Cheat Sheets
  • Challenge Bank™
  • Powerful Passing Probability analytics
  • State-specific CDL manual
Please note that the Pass Guarantee is not included in the CDL Premium Corporate program.

What happens after I sign up?

Once your payment is complete, you will be automatically signed in to your Admin Dashboard. You will receive an email with a receipt and your payment details. You'll be able to generate invite links for your trainees right away.

A trusted partner since 2018, with shared goals to reduce traffic deaths and increase driver competence.

LAPL and over 2,500 other US libraries have been using our driver education programs since 2017.

Our studies and research papers have appeared in the Washington Post, Chicago Tribune, Forbes, and other media outlets.

Recommended by DMVs and trusted driving organizations

Driving Tests Partner Logos

How does our Pass Guarantee work?

If you successfully complete every practice test for your state, we promise you a passing grade on your CDL knowledge test or we'll refund your money.

Just send us an email at [email protected] with your full name (must match the name and address used for your purchase). The time between completion of all of the tests and your exam date should not exceed 30 days. 

We'll check your account to make sure you've successfully completed all practice tests for your state. Once that is confirmed, we'll issue a full refund (you'll receive a separate email confirmation).

Premium Plus Family Bundle

3-User Family Pack

One-time purchase, Lifetime access

Get 3 Premium+ accounts


3 separate Premium+ accounts for 3 family members i

Perfect for couples or families with teenage kids

Separate progress for each user

All-Access Pass for each user: car, motorcycle and commercial (CDL) programs i

Instant savings: you save 27% if you need it for two users, or 52% when buying for three.

Pass Guarantee for each user i

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Get Ready to Pass Your CDL Test

Start Answering Real CDL Questions

120+ Premium Practice Tests for All CDL Exams

2200+ Questions. No surprises.

Based on the Official CDL Handbook

Unlock 9 Exclusive PDF Cheat Sheets with Top 100 Questions

Pass Guarantee - Pass or Get Your Money Back

All CDL License Classes and Endorsements

CLASS A, B and C










Perfect for:

COMMERCIAL LEARNER'S PERMIT First-time CDL applicant? Upgrading class? Adding endorsements? We’ve got you covered.

COMMERCIAL DRIVER'S LICENSE Practice with premium CDL tests that make it impossible for you to fail.

CDL RENEWAL Save time and pass your CDL renewal test like a breeze.

Upgrade to Premium now

187% more effective than the CDL handbook alone

Unlimited Access Unlock premium-only CDL practice tests.

No Ads Stay focused. Premium CDL members see no ads.

Pause & Resume Take a break and resume from where you left off. Your progress is always saved.

Be Smarter Smart Assistant tells which questions you should focus on.

Take Your Tests Anywhere Start a test at home, complete it on your smartphone or tablet.

Smart Tracking Track your progress across all your devices.

Pass Your CDL Test on your first try

Premium CDL Members Have a 99% Success Rate (based on customer surveys as of Sep 8)

LIKE THE REAL CDL TEST All questions are based on your state's official CDL handbook as well as recent and actual CDL tests.

Updated for 2021 Based on the most recent CDL road rules and safe driving practices.

NO SURPRISES Our tests are created to mimic the experience of the actual CDL tests.

Instant feedback Complete Premium practice tests and see your overall score. Take the CDL marathon test and see the correct answer for each question right away.

Why get CDL Premium?

What People Say

Ohio Bureau of Motor Vehicles

A great resource for all aspiring CDL drivers.

John KelleyFlorida

The questions on the actual test were almost identical to the ones I had already answered in your Premium tests! Thank you so much!!


Great stuff! I had failed once. This helped me pass and get my endorsement. Lots of questions, useful cheat sheets and works like a charm. I recommended CDL Premium to all fellow truck drivers!

Joe Jones Texas

This was really helpful! I sometimes struggle to concentrate, so reading all those notions on the CDL handbook was a nightmare! Your Premium tests made it much easier for me to prepare and pass my CDL test. Thanks!

I had tried another service which cost me twice as much and didn’t help me at all. Now, THIS was money well spent!!! A ton of questions very similar to the ones I had to answer in the real exam! Your cheat sheets are great too.

Jeff BeckerCalifornia

I’m not sure how you do it, but these tests are the best thing I could possibly purchase with my money! I studied where I wanted and I liked all the functions, especially the smart assistant. I will recommend this to my trucking friends!

Michael BennettMARYLAND
Texas Department of Public Safety

An essential resource for all CDL applicants.

This is brilliant! Great cheat sheets, this actually helped me pass! Tons of questions and very easy to use! Recommended.


Andrew RichardsonNEW JERSEY

I got my endorsement on the first try, thanks! I am busy and had very little time to study. These Premium tests really made my life so much easier! Compared to reading the CDL manual this is a thousand times better.


I almost can’t believe I passed! it's a load off my mind. Your site was really helpful, I am so glad my friends told me about it.

Get Premium Now

unlock 9 exclusive cheat sheets:

TOP 100


Be prepared. Discover the answers to real questions based on actual CDL tests. Take your exam. You’ll know the answers.


Don’t waste time memorizing unnecessary information. Know which questions are most likely to appear on the actual test. Focus on what matters!

Discover The Top CDL Questions

Access 9 exclusive PDF cheat sheets unveiling the most frequent CDL questions for each test. All endorsements included! Perfect for a quick recap right before your test. Print the cheat sheets or download them to your smartphone or tablet!

Pass Your CDL Test

Upgrade to premium

Study when and where you want Works on all your devices.

Night Mode Study at night without your eyes getting tired. Get better sleep and be ready for your test.

Smart Assistant Save the trickiest questions in a separate list so that you can review them later.

Loads 2.5x Faster Premium tests load faster, and you save on your phone data plan.

Free Updates Premium members get free access to all updates and new features.

Get A Pass Guarantee

By signing up for CDL Premium, you are guaranteed a passing score. That’s correct: pass using our fast and optimized program, or your CDL Premium becomes free.

What You Get

Everything in the standard version, plus:

CDL Premium Lifetime Access Access to All CDL Premium tests and Endorsements. Forever.

Access to All 2200+ CDL Questions Be Prepared - Get Full Access to All CDL Questions

120+ CDL Tests +150% Additional Tests, Covering All CDL license Classes and Endorsements

CDL Marathon Tests The Best Way to Study the Day Before Your CDL Exam

Ad-Free Navigation Zero Distractions, 100% Focus

Smart Tracking Never Lose Your Progress

Smart Assistant Easily Review the Trickiest Questions

Night Mode Study Better at Night

Pass Guarantee Pass or Get Your Money Back

9 Exclusive PDF Cheat Sheets Top 100 Questions for All CDL Tests and Endorsements

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Canadian Discovery announces new premium subscription package CDL ONE

CALGARY, AB – Canadian Discovery Ltd. (CDL) is pleased to present CDL ONE. CDL ONE combines all of CDL’s subscription products into one simple, web-based service to deliver industry-leading intelligence. The four products comprising CDL ONE are the CDL Digest, Fluid Dynamics Database, Play Metrics, and the Technical Studies Library. Whether undertaking an A&D evaluation or benchmarking completions in the Montney, CDL ONE brings you critical insights to answer the questions vital to your business decisions. Built on 35 years of technical work in the WCSB, CDL ONE is one simple login, one line item, and one location for all of your subsurface investigation needs. Visit to learn more, or contact CDL to find out how to gain access to the ONE solution to fit your needs.

CDL Digest: Stay geologically and technically informed with industry-leading exploration and production (E&P) research, technical analysis and reporting with CDL’s premium Digest publication. The Digest enables geoscience, engineering, land and finance professionals across Western Canada to stay abreast of current exploration, development, completions and engineering trends. The Digest will help save time and reduce costs by doing the reconnaissance work for you, allowing you to focus on your core business. Whether you are an established player, new to Canada or new to the oil and gas industry, the Digest delivers digestible, independent information to help you:

  • Understand the geological and engineering drivers behind Canada’s hottest plays, operators and technology
  • Follow activity and results within your core areas and across the entire basin
  • Get up-to-speed quickly with our library of over 2,100 articles and maps
  • Generate insights and create opportunities

Fluid Dynamics Database: Based on 13 integrated Montney reservoir projects, CDL has completed a detailed stratigraphic model of the Montney and placed every producing well into a consistent regional framework. This is combined with quality-controlled reservoir pressure, temperature, gas chemistry, oil chemistry and water chemistry data. Understanding regional trends, production performance and benchmarking is now easier than ever with this dataset. Whether determining liquid yields on new pads or in exploratory zones, or comparing completions across the basin, the Fluid Dynamics Database gives you the data you need to make informed decisions.

Play Metrics: Delivered through CDL’s play evaluation platform Catalyst, Play Metrics is Sproule’s expert opinion on production forecasts and economic parameters for the key resource plays across Western Canada. Utilizing Sproule’s extensive experience in reserve evaluation, wells are forecasted for all pertinent fluids (oil, condensate and gas) with EURs and economics available for all wells in this dataset. This data can be utilized for custom analysis in Catalyst or exported to ValNav for a user specific technical analysis. This information is pivotal in comparing field development strategies, A&D, completions comparison and a multitude of other subsurface investigation projects.

Technical Studies Library: The Technical Studies Library, a product of CDL’s expertise division and Rakhit Petroleum Consulting Ltd. (RPCL), comprises Western Canada’s largest collection of integrated geoscientific projects. Contained within the library are 300+ technical studies conducted over the last 35 years that span the entire Western Canadian Sedimentary Basin, Williston Basin and abroad. Topics include: sedimentology, hydrodynamics, structure geology, petrophysics, and fully integrated subsurface evaluations. Whether utilizing the library to gain a broader regional understanding, or making a quick technical analysis, the Technical Studies Library has the information to get you up to speed in new and old asset evaluations to enhance your technical knowledge, understanding and skills to make informed business decisions.

About Canadian Discovery Ltd.
Canadian Discovery Ltd. (CDL) is an independent, global energy information services company headquartered in Calgary, Alberta, Canada. As world leaders in reservoir- to basin-scale evaluation, we specialize in assessing subsurface properties, pressure, fluid flow, fluid chemistry and geomechanics. CDL’s extensive subsurface knowledge and GIS capabilities support Clean Technologies including Carbon Sequestration and Storage (CCUS), Critical Minerals, Geothermal Energy, and Water Disposal and Sourcing Solutions. Our deep understanding of depositional environments and fluid-rock interactions in the subsurface has been CDL’s core competency for nearly 35 years. We are using this foundation to strategically deliver CCUS site identification, Critical Mineral and Deep Geothermal assessments to clients worldwide.

Canadian Discovery




Contact Canadian Discovery Ltd.

[email protected]
+1 403 269 3644
500, 622 – 5 Avenue SW
Calgary, AB Canada, T2P 0M6

CDL Premium: Introduction

CDL Practice Test

As you prepare to take your Commercial Driver’s License (CDL) exam, we’ve put together some information here that will help you prepare and know what to expect. You’ll find details on how to sign up for the test, along with costs and payment information. Also, we’ll give you an overview of what you can expect to see on the test, and more.

CDL Practice Test


Exam Purpose and Background

When you take and pass the exam, the CDL you earn will allow you to drive larger commercial vehicles and those that require a specialized or advanced set of skills and knowledge. For example, a CDL allows you to operate a vehicle weighing 26,001 pounds or more, based on gross vehicle weight rating (GVWR), or lighter vehicles transporting people. In general, the CDL signifies that you have the baseline knowledge needed to operate these specialized vehicles safely.

Requirements to Apply

To qualify for a CDL, you must meet a number of requirements to confirm that you’re a U.S. citizen and disclose any other pertinent driving-related information. Find a complete set of requirements at

The Steps to Obtaining Your CDL

When you’re ready to begin the steps to obtain your CDL, contact your local Department of Motor Vehicles for an appointment.

Here’s an overiew:

  • Be 18 (driving intrastate) or 21 (driving interstate)
  • Turn in your state’s CDL application form and fee
  • Confirm identity and Social Security Number verification
  • Provide proof of residency
  • Submit a complete Medical Examiination Report Form and Medical Examiner’s Certificate Form
  • Complete/pass vision test
  • Pass your Knowledge Test to receive a Commercial Learner’s Permit (CLP)
  • After 14 days, schedule your Skills Test
  • Pass the pre-trip inspection
  • Pass the road skills and driving examination using your own vehicle
  • Pay needed fees for your CDL

Costs/Payment Options

There’s a wide range of fees involved with taking the CDL exam, based on the license class you’re seeking, along with the type of application (including special enorsements, with/without driving test, etc.). In general, the fee ranges from $27 to $73 and is subject to legislative change. Find updated fees at

CDL Testing Information

Two Parts: Getting your CDL involves two primary steps, including a Knowledge Test and a Skills Test.

The Knowledge Test

Based on what class of license you’re pursuing and the endorsements you’re required to have, you will need to take at least one knowledge test. The general knowledge test is required no matter what license class you’re applying for. See for a list of knowledge tests and a decision tree to help you plan for which tests you’ll need.

Studying for Your Test

There are two primary resources you should study as your prepare for your CDL exam. The first is the general CDL Manual ( that give you a broad, standardized set of information.

Second, be sure to study your state-specific CDL Manual ( to ensure you understand specific information and requirements for your jurisdiction.

What to Bring:

  • Current forms of ID (current driver’s license, proof of U.S. citizenship/lawful permanent residency (such as U.S. passport, U.S. birth certificate, certificate of citizenship or permanent residency card)

What Not to Bring:

  • Any type of study aids, such as notes or written materials
  • Electronic devices of any kind, including cell phones, iPads, etc.
  • Personal items

Test Duration:

If you’ll be taking all knowledge tests, you can plan on taking two to three hours.

The Skills Test

Once you pass the Knowledge Test, you’re eligible to take the Skills Test. This portion of the test covers three areas, including basic control skills, vehicle inspection and a road test.

  • Vehicle Inspection Test (Takes about 40 Minutes)—During this portion, you’ll walk through an actual inspection with your proctor and explain your inspection decisions to him/her.
  • Basic Control Skills Test (Takes about 30 Minutes) — This portion puts you behind the wheel and requires to you complete some essential maneuvers, including turning the vehicle in a defined area, pulling backward and forward, etc.
  • Road Test (Takes about 45 to 60 Minutes) — Using route designed by the Department of Motor Vehicles, you’ll drive the vehicle and be assessed on your ability to navigate and successfully complete maneuvers typically required of a person driving the vehicle.

Additional Resources

As you get set for the CDL exam, we want to remind you about other resources that are available to you with Mometrix Academy. For a fee, you’ll have access to our CDL exam Study Guide that features valuable information and video learning. Also, you can use our CDL Flashcard Study System that will help you test your information recall and boost test readiness.


What is on the CDL test?

On the CDL test, you will be tested over several topics, including: vehicle inspection, communicating with other drivers, the dangers of driving while drinking, rail road crossing, accident procedures, and the importance of staying alert and fit to drive.

How many questions are on the CDL test?

The CDL test contains 50 multiple-choice questions.

What percentage do you need to pass a CDL test?

To be considered as passing the CDL test, you will need to answer 80% of the questions correctly.

What does a CDL allow you to do?

A CDL allows you to drive and operate vehicles that are included in a particular class for which the license was issued. For example, depending on which class of CDL you will have, you will be able to driver any vehicle that weights 26,000 or more for commercial use, transport hazardous waste material, and operate a vehicle that is designed to transport more than 16 passengers.

Can you drive a bus with a CLASS A CDL?

To drive a bus, you must possess a Class C CDL along with first a P endorsement. A P endorsement is required to drive a vehicle that carries at least 16 passengers. After obtaining the P endorsement, you are then qualified to obtain an S endorsement.

Is the CDL A test multiple choice?

Yes. The CDL test is multiple choice. You will have 60 minutes to answer 50 multiple-choice questions.

How long does it take to get your Class A license?

If you prefer to take a CDL training program, it usually takes about seven weeks to obtain your Class A CDL.

What is a Class A CDL permit?

A CDL permit is the first step to obtaining your CDL. A CDL permit is a lot like a regular driver’s license. You are required to have it before obtaining your actual CDL.

What is required for a CLASS B CDL?

There are several requirements for obtaining a Class B CDL. You must first be 21 years of age and be able to pass an eye exam. You must also have a valid driver’s license free of any moving violations. You will be required to pass the General Knowledge test, the Basic skills test, Air-brakes test, Pre-trip inspection and any other required tests needed to obtain a Class B CDL.

CDL Study Guide

Mometrix Academy is a completely free resource provided by Mometrix Test Preparation. If you find benefit from our efforts here, check out our premium quality CDL study guide to take your studying to the next level. Just click the CDL study guide link below. Your purchase also helps us make even more great, free content for test-takers.

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Pass your CDL Exam with our free CDL practice tests - updated for 2021!  We have assembled hundreds of sample questions and answers, all straight from the official sources. is your ultimate source of CDL practice tests. 

If you want to pass the CDL exam, try our free CDL practice tests and CDL study guides!

Summary: Try out our free CDL practice tests below.

Free CDL Practice Exams

CDL General Knowledge Practice Test

CDL Hazmat Practice Test

CDL Air Brakes Practice Test

CDL Doubles/Triples Practice Test

CDL Tanker Practice Test

CDL Combination Vehicles Practice Test

CDL Passenger Transport Practice Test

CDL School Bus Practice Test

Our Recommended CDL Study Course

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If you need more help, recommends Their CDL Premium course features:

  • Instant Access – Immediate access... no waiting for a book to be shipped.
  • 1,000+ Practice Questions – With complete explanations.
  • All License Classes  – Covers all 3 license classes (A/B/C).
  • All Endorsements - Covers all 9 endorsements (HazMat, Tankers etc.).
  • Study Anywhere - Study on your phone anywhere you go.
  • 95% Pass Rate - 2x better than studying the CDL manual.
  • 100% Pass Guarantee - Money-back guarantee if you don't pass!

Learn More!


About Our Free CDL Practice Tests's sample CDL questions are a great way to prepare for your CDL permit test. Best yet, our tests require no registration or payment! 

All of our practice commercial driver’s license tests are categorized based on the actual test outline and are immediately scored at the end of the quiz. Once you are finished with the quiz, you will be presented with a score report which includes a complete explanation and rationale for every question answered incorrectly.  

We will be adding more sample CDL test questions in the near future, so please come back often. And if you like these practice questions and think they’d be valuable to others preparing for their CDL permit test, please make sure to share these resources with your friends and colleagues.

Other CDL Practice Tests and Resources

Along with our variety of commercial driver’s license practice tests listed above, we’re happy to share some additional resources for our visitors. Take a look at the options below:

All of the information you need to pass your CDL exam will be included in your state's CDL manual, so please make sure to study the latest version for your particular state. State CDL manuals will specify eligibility, requirements, and testing procedures.

The manual also acts as a CDL study guide because it covers all of the information that is required to pass your CDL exam. maintains a directory of State CDL manuals.  You can also find more information about CDL licensing procedures by visiting your state's license agency.

CDL Test Overview

If you plan on operating a Commercial Motor Vehicle (CMV) then you are required to obtain a Commercial Driver License (CDL). In order to get a CDL, you must first take and pass a general knowledge test, various endorsement tests (depending on the license type you are seeking) and a driving skills test.  

The tests that you will take depend on the license classification that you are obtaining (Class A, B, or C) and the type of vehicle that you will be driving (e.g., Tanker, Double/Triple, Passenger Bus). To help our visitors, provides an overview of how to get your CDL license.

CDL License Requirements

In general, the CDL test is based on national requirements, although each state may add additional restrictions. CDL license requirements focus on your driving record, age, and health.  For more information, you can visit our CDL license requirements page.

You must have a Commercial Driver's License (CDL) if you plan on operating:

  • Any single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.
  • Combination vehicles that have a gross combination weight rating (GCWR) of 26,001 or more pounds, if the GVWR of the trailer or towed unit is more than 10,000 pounds.
  • Vehicles designed to transport 16 or more passengers (including the driver).
  • Any vehicle which requires hazmat placards or is carrying material listed as a toxin or select agent in 42 CFR Part 73.

To determine the class of CDL license you need, please refer to the following diagram:

Class of CDL

Determining the Required Class of CDL

Note: A bus may be either Class A, B, or C depending on whether the GVWR is over 26,001 pounds or is a combination vehicle.

Which CDL Sections Should You Study?

Use the following tables to determine which tests you should study for:

Sections by License Type

Section Class AClass BClass C
 General KnowledgeXXX
 Passenger Transport   
 Air BrakesXXX
 Combination VehiclesX  

Sections by Endorsement

Section HazmatDouble/
Tank VehiclesPassengerSchool Bus
 General Knowledge XXXX
 Passenger Transport   X 
 Air Brakes X   
 Combination Vehicles XX  
 Doubles and Triples X   
 Tank Vehicles  X  
 Hazardous MaterialsX X  
 School Buses    X

CDL Knowledge Tests

You must take and pass one or more knowledge tests to earn your commercial driver's license. The tests you will take depend on the license class you are seeking (e.g., A, B, or C) and the endorsements that you need. These knowledge tests are summarized below:

  • General Knowledge – The general knowledge CDL test is taken by all applicants. The test has 50 multiple choice questions. Major topics of the general knowledge test include: CDL rules and requirements, safe driving, safe transportation of cargo, and pre-trip vehicle inspections.
  • Combination Vehicles – If you want to drive combination vehicles you must take and pass this CDL test section. The combination vehicles test has 20 multiple choice questions. The topics on the combination vehicles test include: driving combination vehicles safely, combination vehicle air brakes, antilock brake systems, coupling and uncoupling, and inspecting a combination vehicle.
  • Air Brakes – If you plan on driving a truck or bus with air brakes, or pull a trailer with air brakes, you will need to take the air brakes CDL test. The air brakes test will have 25 multiple choice questions. Topics on the air brake test include: parts of an air brake system, dual air brakes, inspecting air brake systems, and using air brakes.
  • Tank Endorsement – You are required to have a tank endorsement if you plan on driving a CMW over 26,000 pounds that is used to transport liquid/gaseous materials. The materials do not have to be hazardous. This endorsement is only required if the vehicle is a Class A or B vehicle with a permanently mounted take greater than 119 gallons or a portable greater than 1,000 gallons.
  • Double and Triple Trailer Endorsement – If you plan on pulling double or triple trailers, you are required to pass this endorsement test. There are 20 multiple choice questions that assess your knowledge about driving safely with double and triple trailers. This part of the CDL test includes questions on how to couple and uncouple trailers, pulling double/triple trailers, doubles/triples air brake checks, and inspections.
  • Hazardous Materials Endorsement – Hazardous materials (Hazmat) include explosives, flammable and combustible liquids and any materials that the shipper deems as hazardous. You must obtain a HAZMAT endorsement to operate any size vehicle that requires a HAZMAT placard (as further specified in 49 CFR 383.5). This endorsement test has 30 multiple choice questions covering the following topics: intent of the regulations, communication rules, loading and unloading, bulk packaging marking, driving and parking rules, and emergencies.
  • School Bus Endorsement – Although these regulations may vary from state to state, you are required to have a school bus endorsement if you plan on driving a vehicle that carries 16 or more people, including the driver, that is marked with or displays the words “school bus.” A school bus is used to transport students to or from school or authorized school activities. If the school bus is not transporting students, then a school bus manufacturer, dealer or mechanic is not required to have the endorsement. Before receiving a school bus endorsement, you must qualify for a passenger endorsement. This CDL test will cover the following topics: danger zones, use of mirrors, loading and unloading, emergency exit and evacuation, railroad-highway crossings, student management, antilock braking systems, and special safety considerations.
  • Passenger Endorsement – You will need to obtain a passenger endorsement if you plan on driving any vehicle designed to carry 16 or more persons, including the driver. If the vehicle is a school bus, you will need to obtain an additional school bus endorsement. The passenger transport endorsement CDL test will have 20 multiple choice questions on the following topics: vehicle inspection, loading and trip start, on the road, after-trip vehicle inspection, prohibited practices, and use of brake-door interlocks.


How can I pass my CDL Test?

One of the best ways to prepare for the CDL test is by taking free practice tests. At Test-Guide, we offer numerous free practice tests to help you succeed!

Which CDL sections should I study?

This mainly depends on which CDL license and endorsements you want/need. Depending on what you choose will alter what you need to study for. Check out the tables provided to see what areas you should be focusing on.

How do I get my CDL license?

There are a couple of important steps when trying to obtain your CDL license. You should determine which CDL license and endorsments you need first. Next you should obtain a commercial learner's permit. Finally, you should get your CDL License. For a complete run though of how to get your CDL, click here.

We Hope You Enjoy Our Free CDL Practice Exams

The sample CDL practice exam questions that we have included above will help you understand which areas you need to work on and let you find ways to improve. So be sure to study your state's CDL manual, take our free CDL practice tests, and review the areas that need a boost. Good Luck!

And If you have any other sources for free CDL practice tests, or CDL study guides, please let us know by contacting us and we can include them above.

Last Updated: 1/5/2021

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