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General Knowledge Practice Test

The CDL General Knowledge Test will test your knowledge on broad topics such as CDL rules and requirements, transportation of cargo, pre-trip vehicle inspections, traffic laws, vehicle equipment, road signs, and more. All applicants are required to pass this test.

Official test facts
  • Passing score: 80 %
  • Number of questions: 50
  • Correct answers needed to pass: 40
  • Length: 60 min
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Hazardous Materials Practice Test

You need to get this endorsement if you wish to operate any commercial vehicle that requires a HazMat placard, which is mandatory if you are transporting hazardous materials, such as explosive, poisonous, or flammable liquids. To apply, you must either be a U.S. citizen, be a permanent resident, or have a valid Employment Authorization Document. The HazMat exam tests your knowledge on topics such as loading and unloading, emergencies, communication rules, parking rules, and bulk packaging marking.

Official test facts
  • Passing score: 80 %
  • Number of questions: 30
  • Correct answers needed to pass: 24
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Double and Triple Trailers Practice Test

This endorsement is required if you wish to pull double or triple trailers. You will be tested on topics such as pulling double and triple trailers, air brake checks, how to couple and uncouple trailers, how to inspect trailers, and more.

Official test facts
  • Passing score: 80 %
  • Number of questions: 20
  • Correct answers needed to pass: 16
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Tanker Vehicles Practice Test

This CDL endorsement is required if hauling a tank with an individual rating greater than 119 gallons or a portable equal to, or greater than, 1,000 gallons. Tankers are used to transport liquid or gaseous materials. The exam will test you on topics such as tanker vehicle inspection, special purpose equipment, safety procedures, weight limits, and on-road safety.

Official test facts
  • Passing score: 80 %
  • Number of questions: 20
  • Correct answers needed to pass: 16
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Air Brakes Practice Test

Passing the air brake endorsement test will allow you to drive trucks and buses with air brakes, as well as pull trailers with air brakes. The air brakes exam tests your knowledge on topics such as how to inspect air brake systems, dual and single air brakes, how to use air brakes, and how the air brake system works.

Official test facts
  • Passing score: 80 %
  • Number of questions: 25
  • Correct answers needed to pass: 20
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Combination Vehicles Practice Test

Passing the combination vehicle endorsement test will allow you to drive combination vehicles. You will be tested on topics such as how to handle combination vehicle air brakes, how to drive combination vehicles, coupling and uncoupling, and how to make a proper vehicle inspection.

Official test facts
  • Passing score: 80 %
  • Number of questions: 20
  • Correct answers needed to pass: 16
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Passenger Vehicles Practice Test

A passenger vehicle CDL endorsement will allow you to drive any vehicle designated to carry 16 or more persons (including the driver). This endorsement test will test your knowledge on topics such as vehicle inspection, what to remember on the road, prohibited practices, and vehicle loading.

Official test facts
  • Passing score: 80 %
  • Number of questions: 20
  • Correct answers needed to pass: 16
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School Bus Practice Test

This endorsement is specifically made for transporting students to or from school/school activities. The school bus endorsement exam will test your knowledge of topics such as how to load and unload a school bus, managing students, use of mirrors, danger zones, and emergency situations/evacuation. You’ll need a P endorsement before being eligible for this endorsement.

Official test facts
  • Passing score: 80 %
  • Number of questions: 20
  • Correct answers needed to pass: 16
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Pre-Trip Inspection Practice Test

The pre-trip inspection is an in-person exam where you will be required to make a thorough inspection of your vehicle in front of an examiner. You’ll also need to explain why certain parts of the vehicle must be inspected before driving. The federal requirements state that you need to inspect in-cab safety and emergency equipment, air-brakes, coupling system, vehicle lights, chassis, brakes, engine compartment, fuel tank, among other things.

Earning your commercial driver’s license in any state requires you to follow several steps, starting with passing your CDL general knowledge test followed by endorsement exams. If you’re stuck staring at the pages of the dense CDL manual, passing your tests may feel a little overwhelming if not impossible.

Studying using the handbook is a great way to learn for some, but relying solely on the handbook will make passing your exams very difficult. Many prospective drivers complain that there’s too much information presented at one time, and the material can be hard to understand and remember. That’s what Zutobi is here to help with - we’ll break down the entire handbook into small and digestible practice tests that will help you pass the CDL exam in a breeze.

Zutobi is our online learning platform that has revolutionized the process of learning to drive any vehicle through easy-to-understand theory and tests. Whether you’re getting behind the wheel of a car for the first time, or working on obtaining your CDL, Zutobi can help you study test-relevant material in a way that is fun and engaging.

Pass Your CDL Test in Any State with Zutobi

Zutobi can help you learn everything you need to know in order to earn a Passing score on your CDL test on your first try. Here are some of the features you’ll get with Zutobi:

  • State-specific CDL practice tests that simulate the real exam to help you feel prepared and comfortable on test day.
  • Answers and explanations to all of our practice test multiple choice questions so you can learn the correct answers and the reasoning behind them.
  • Relevant information that you need to know in order to pass your CDL test and stay safe on your job. Learn everything from traffic laws to specific regulations for commercial vehicles.
  • An all-in-one course with practice tests for all CDL endorsements.
  • Fun, engaging learning levels that help you stay motivated to study as you earn points and achievements.

How Can You Make Sure to Pass Your CDL Test?

The first thing you need to do is get yourself a copy of the CDL driver's manual - It contains everything you need to know and more. Hard copies can be found at your local DMV office. After you've read through the manual, we recommend that you start doing a lot of practice tests online. If used correctly, these tests will help you understand how the actual exam works and will help you identify weak areas that you need to practice more.

FAQ

Is the CDL General Knowledge Test Hard?

Like any exam, the test will be difficult if you haven’t prepared properly - which is why so many fail. We equip you with bite-sized pieces of information that are easy to understand and, therefore, easy to remember. Our exam-like questions contain detailed explanations that will give you valuable context based on the CDL manual so you’ll feel fully prepared on test day.

How Many Tests Do You Need Take To Get Your CLP?

You must pass the general knowledge test to get your permit. Once you have taken and passed the exam, you can get behind the wheel of a commercial vehicle to gain driving experience under supervision. Once you’re ready to proceed to a full commercial license, you will need to pass a road skills test.

If you are trying to earn different endorsements on your CDL, you will have to take and pass additional exams. Examples of these endorsement exams are the:

  • Tank Vehicle Endorsement Test
  • School Bus Endorsement Test
  • Hazardous Materials Endorsement Test
  • Passenger Endorsement Test

What is a Class A CDL?

A Class A CDL allows drivers to operate a vehicle towing a detachable trailer of a gross vehicle weight rating (GVWR) of more than 10,000 pounds. Examples of these trucks are usually any regional or local semi-truck you see on the highway.

What is a Class B CDL?

Any driver with a Class B CDL can drive a vehicle with a GVWR of 10,000 pounds or more, except the trailer is not detachable. These types of vehicles include dump trucks, trash trucks, large buses (including school buses, city buses, and tourist buses), and straight trucks.

What is a Class C CDL?

Drivers holding a Class C CDL can operate any vehicle designed to carry 16 passengers or more (including the driver). This license also allows drivers to operate certain hazardous material vehicles such as gasoline trucks.

How Do You Get Your Commercial Learner’s Permit?

  1. Be at least 21 years old. Some states will issue an intrastate CDL to people between 18 – 20 years old.
  2. Submit your application.
    1. Provide proof of residency. Valid documents must serve as proof of both state and US residency.
    2. Provide proof of identity. Valid documents must be presented showing your identity. For example; US birth certificate, valid US passport or Permanent Resident Card.
    3. Provide proof of social security number. A valid document must be used as verification of your SSN. For example; a social security card or Medicare ID card.
    4. Submit proof of your medical status. To do this, you must submit a Medical Examiner’s Certificate Form (MCSA-5876) and a Medical Examination Report Form (MCSA-5875).
  3. Pass CDL knowledge exam.
  4. Pass a vision test. This test will ensure that you have an acceptable visual acuity.
  5. Get a Commercial Learner’s Permit (valid for 180 days). With this you can finally practice using real vehicles and with a supervising commercial driver in the passenger seat - You can schedule a road test at the earliest 14 days after receiving your CLP.

How Does Our CDL Practice Tests Work?

Our CDL practice tests contain multiple-choice questions, and are perfect if you want to study and test yourself before you have to sit down to take the real thing. The questions are nearly identical to those on the real exam, and also include detailed explanations to help you fully understand and retain the information in the handbook. Based on what you want to study, you can choose whether you only want to study for the general knowledge test or if you want to study a specific endorsement, such as air brakes, tanker, or combination vehicles.

In short: You can use our practice test questions, and their provided answers, as the perfect CDL study guide to help you pass your CDL knowledge test and endorsement exams.

What to Bring On the Day of Your Test (And Other Requirements)

You will need to bring the following items:

  1. Proof of citizenship or lawful permanent residency (49 CFR § 383.71).
    1. Birth certificate
    2. Green card
    3. Social security card
    4. Valid passport
  2. A valid driver’s license with no active suspensions or revocations in any state.
  3. Proof of residency. Valid documents must serve as proof of both state and US residency.
  4. Proof of social security number. A valid document must be used as verification of your SSN. For example; a social security card or Medicare ID card.
  5. Proof of your medical status (Medical Examiner’s Certificate Form (MCSA-5876) and Medical Examination Report Form (MCSA-5875)).

You must also meet the following requirements:

  1. Must have accumulated 12-24 months of driving experience (depending on state).
  2. Be at least 21 years old to drive across state lines (interstate) or transport hazardous materials.
  3. Be at least 18 years old to drive intrastate (most states).
  4. Pass necessary background checks.
  5. Must be able to read and speak English to drive a CMV (§ 391.11).
  6. Must not be subject to any disqualification under FMSCA Section § 383.51 Disqualification Of Drivers.

Note that there may be other restrictions and requirements you need to meet in addition to the ones listed above to be able to get your CDL license.

Try Zutobi’s CDL Practice Tests Today!

Test your knowledge using our free CDL practice test for your state. If you find yourself wanting more, sign up to the Zutobi CDL course today.