CDL Practice Test


This site is available to take practice questions to prepare for the Florida CDL test. The questions on these practice tests come from the Florida CDL Handbook. The tests are free and you are able to take them as many times as you would like. Use these practice tests as a way to prepare to obtain a CDL in Florida. You will be presented with 40 questions and you must answer 34 questions correctly to pass.  There is a 50-minute time limit.  You may not go back once you answer a question. Click the "Start Test" button below to begin. Good luck!

1 / 40

Select the true statement about dual air brake systems:

2 / 40

What is the stopping distance for a tractor trailer that is traveling at 55 mph on dry pavement?

3 / 40

Make sure that_____before you back under a trailer.

4 / 40

The minimum tire tread depth for front tires is:

5 / 40

Select the item that is not checked in the engine compartment:

6 / 40

Which hazard classes must you NEVER smoke, or perform any activity involving fire, within 25 feet of?

7 / 40

Secure baggage and freight in ways that avoid damage and:

8 / 40

Which of the following statements about the bus interior is false?

9 / 40

Select the true statement about emergency brakes:

10 / 40

At around____the governor allows the air compressor to start pumping again:

11 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

12 / 40

What are some of the important parts in the steering system?

13 / 40

What action should you take before driving while drowsy?

14 / 40

Of the following hazardous material classes, which is the most dangerous?

15 / 40

How often should you drain your air tanks?

16 / 40

Select the true statement:

17 / 40

Which of these statements about speed management and braking is true?

18 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

19 / 40

It is good practice to_____when uncoupling.

20 / 40

What are slack adjusters?

21 / 40

You downshift automatic transmissions ______.

22 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

23 / 40

Which of the following statements about downshifting is NOT true?

24 / 40

What action should you take if there is no phone available and you discover your hazardous materials shipment leaking at a rest stop?

25 / 40

Do converter dollies have spring brakes?

26 / 40

You should look into the back of the fifth wheel on a dolly to see if it is locked onto the kingpin.

27 / 40

Select the statement that tells you how you can check the low pressure warning signal.

28 / 40

You should keep a minimum of ____between another vehicle and the double trailer with 100 ft truck driving at 30 mph.

29 / 40

If you do become sleepy while driving, you should _____.

30 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

31 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

32 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

33 / 40

Select the inappropriate way to test for the low pressure warning signal.

34 / 40

Suspension systems:

35 / 40

Select the statement that describes smooth bore tanks:

36 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?

37 / 40

The belt that you need to make sure is securely mounted, without frays, and adjusts and latches properly is the:

38 / 40

Select the correct description for a bulkhead tank.

39 / 40

What is the benefit of ABS?

40 / 40

Select the true statement about what the Air Compressor Governor controls:

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CDL Category Practice Tests

CDL Practice Test

How To Get A florida Commercial Drivers License

Applicants can get their CDL at the age of 18. Person between the ages of 18 and 21 are restricted to intrastate driving, cannot drive doubles or triples, and may not be endorsed for Hazmat transport. Those age 21 and older may receive all available endorsements and drive interstate. CDL applicants must obtain a DOT medical card to be eligible for their commercial driver’s license.

Any drivers that fall into the below categories are disqualified from obtaining their CDL.

  • Having a license from any other state than Florida.
  • Being convicted of driving impaired in a commercial vehicle in the past two years.
  • Having a suspended, revoked, or canceled driver’s license.
  • Being disqualified from CDL driving privileges in another state.

All applicants must complete one or more knowledge tests and a skills test in order to be eligible to receive their commercial driver’s license.

H – Hazmat
N – Tank Vehicles
P – Passengers
S – School Bus
T – Double / Triple Trailers
X – Placarded Hazmat & Tank Vehicles

Hit the Open Road

florida CDL License Test Tips

Each applicant is required to complete a knowledge test in order to receive their CDL, with a score of 80% or better. Depending on the Class and Endorsements sought, there are multiple knowledge tests that much be taken. These include:

  • Class A – 70 Questions (50 General Knowledge + 20 Combined Vehicle)
  • Class B,C – 50 General Knowledge Questions
  • Passenger, Doubles/Triples, and Tank Endorsements – 20 Questions
  • School Bus Endorsement, Air Brake Restriction Removal – 25 Questions
  • Hazmat Certification – 30 Questions

All applicants must complete a three section skills test. This includes a vehicle inspection, on-road driving assessment, and basic controls test. Those seeking endorsements for School Bus and Passengers as well as the Air Brake Restriction Removal will need to complete the skills test in the respective vehicle for their endorsement or removal. For example, those seeking the School Bus Endorsement must complete the skills test in a school bus.

Additional Information

Information on the Florida Department of Highway Safety & Motor Vehicles

The Florida Highway Safety and Motor Vehicles provides oversight and administration for the CDL requirements and testing in Florida. To get more information contact them via:

Website: https://www.flhsmv.gov/driver-licenses-id-cards/commercial-motor-vehicle-drivers/

Phone:  850.617.2606


Additional Florida CDL Helpful Links

Please use the links below to access more valuable Florida CDL testing resources and to learn more about practice driving tests for the state of Florida.