Free CDL Practice Test

Where should you place your reflectors when stopped on a un-divided highway or two lane road carrying traffic in both directions?

• a. 10' ahead, 10' behind and 100' toward approaching traffic
• b. 10', 100', 200' toward approaching traffic
• c. 10', 50', 100' behind your vehicle
• d. 100' behind and ahead of your vehicle and within 10' of the front or rear corner

4 . Question

Which of the following represents the best way to make a right turn if you have a large vehicle that cannot make the turn without swinging into another lane.

• a. Diagram A
• b. Diagram B
• c. Diagram C
• d. Diagram D

5 . Question

________ can cause lack of braking power, wheel lockups, pulling to one side or the other, and jackknifing.

• a. Overheated tires
• b. Bleeding tar
• c. Wet brakes
• d. Loose engine belts

6 . Question

• a. RPMs are low and transmission gear is high
• b. RPMs are high and transmission gear is low
• c. RPMs are low and transmission gear is low
• d. RPMs are high and transmission gear is high

7 . Question

• a. Pump the brakes
• b. Put the vehicle in a higher gear
• c. Use the parking brake
• d. Use an escape ramp

8 . Question

• a. Turn off the engine as soon as you can
• b. Open the hood to allow air in
• c. Shoot foam through the louvers, radiator or the vehicle's underside
• d. Pull off the road as soon as possible

9 . Question

• a. Sleep debt
• b. Insomnia
• c. Sleep apnea
• d. Micro-sleep

10 . Question

• a. Require no special driving attention
• b. Have high centers of gravity and are unstable loads
• c. Require special transit permits
• d. Have low centers of gravity and can lean on curves

All CDL Practice Tests

Find all of our CDL practice tests below. Pick which subject you want to practice. Make sure to review the answer explanations at the end of each exam.

CDL General Knowledge

1. CDL General Knowledge Practice Test 1
2. CDL General Knowledge Practice Test 2
3. CDL General Knowledge Practice Test 3
4. CDL General Knowledge Practice Test 4

CDL HazMat

1. CDL HazMat Practice Test 1
2. CDL HazMat Practice Test 2

CDL School Bus

1. CDL School Bus Practice Test 1
2. CDL School Bus Practice Test 2

CDL Air Brakes

1. CDL Air Brakes Practice Test 1
2. CDL Air Brakes Practice Test 2
3. CDL Air Brakes Practice Test 3
4. CDL Air Brakes Practice Test 4
5. CDL Air Brakes Practice Test 5

CDL Doubles and Triples

1. CDL Doubles and Triples Practice Test 1
2. CDL Doubles and Triples Practice Test 2

CDL Tanker

1. CDL Tanker Practice Test 1
2. CDL Tanker Practice Test 2

CDL Combination

1. CDL Combination Practice Test 1
2. CDL Combination Practice Test 2

CDL Passenger

1. CDL Passenger Practice Test 1
2. CDL Passenger Practice Test 2

CDL Prep

If you want some additional help with prepping for the CDL, consider using a CDL prep course.

Other CDL Practice Tests and Prep Materials

Along with the CDL study materials above, we have also listed some resources below.

Use these resources with our resources above to ensure that you pass your exam the first time.

What is a Commercial Driving License?

CDL stands for commercial driver’s license. If you wish to operate a commercial motor vehicle (CMV), you will need to have your CDL.

There are 3 classes of CDL:

1. Class A (Combination Vehicles) – Example would include tractor trailers.
2. Class B (Heavy Straight Vehicles) – Example would include transit busses.
3. Class C (Small Vehicles) – Example would include any vehicle used to transport 16 or more passengers or to transport hazardous materials.

The diagram below can be used to help you determine which class of CDL license you will need.

Overview of CDL Endorsements

In addition to earning your CDL license, you can also earn endorsements. These endorsements allow you to operate certain vehicles.

The more endorsements you have, the more opportunities you will have. View the table below for the different endorsements available.

Please note that the CDL general knowledge test is not listed in the table above. It is technically not an endorsement. However, it is the first test you will have to complete to earn your CDL.

You can learn more here.

Getting a CDL

In general you will need to do the following to earn your CDL:

1. Be 18+
2. Have a driver’s license in the state you are applying
3. Pass the CDL written knowledge test
4. Get a physical and pass your medical exam
5. Get fingerprints taken
6. Go to DMV to pay fees and pass the skills test

About Our CDL Practice Questions

Our CDL prep covers all the topics that you may be tested on when taking the actual CDL exam. Every practice exam includes multiple choice questions, automatic scoring, and detailed answer explanations.

We have split our practice tests up into different categories – just like the actual exam. You will find multiple practice exams for each category.

These exams are perfect to implement along with a CDL study guide. You can test your knowledge and see what you know, and what you do not know.