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The CDL general knowledge test is required to be taken by all CDL applicants. The Florida CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Florida CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual FL general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. You should use your horn to:
to let others know you are there.
to let others know you are about to increase your speed.
to let others know you are about to break.
to let others know you are an experienced driver.
2. In an emergency, if you have to drive off the road you should:
keep one set of wheels on the pavement, if possible.
avoid using the brakes until your speed has dropped.
stay on the shoulder (if possible) until your vehicle has come to a stop.
All of the above.
3. You should signal your intention to turn at least ____ before turning or changing lanes.
100 feet
250 feet
75 feet
50 feet
4. When you push the brake pedal down, air brakes work:
after a short delay.
only when ABS is working.
after about 15 seconds.
5. If stopped on a hill, how can you start moving without rolling back?
Release the parking brake before you have applied enough engine power to keep from rolling back.
Press on the gas pedal, even if you have to roll back a little.
Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
None of the above.
6. If the safety relief valve in the air brake system releases air:
this will supply more power to the brakes.
the valve is fully operational.
this will supply more power to the drive wheels.
something is wrong.
7. When you take a break in the middle of your trip, you should check:
tires, brakes, lights and cargo securement devices.
gauges for signs of trouble.
heater, defroster and windshield wiper blades.
missing exhaust pipes.
8. The air tanks should be drained completely to remove:
the radiator cap.
water and oil.
carbon monoxide.
9. Emergency brakes must be held on by:
hydraulic pressure.
mechanical force.
air pressure.
dynamic pressure.
10. Older trailers do not have spring brakes. If the air supply leaks away:
the trailer will stop normally.
there will be no emergency brakes.
the ABS won't work properly.
All of the above.
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Frequently Asked Questions

In Florida, you are eligible to apply for a learner's license at 15 years old. To obtain a full class E driver license, you must wait until you are 16 years old and have held a learner's license for at least one year. Alternatively, you can directly apply for a driver’s license at the age of 18.
The DMV written test in Florida can be taken through various options:
  • In-Person Testing. Visit any Florida driver license office to take the knowledge test.
  • Online Testing. If you are under 18, you have the option to take the exam online through a registered third-party administrator. After passing the test, the Department of Highway Safety and Motor Vehicles (FLHSMV) will be automatically notified.
  • Driver Education Licensing Assistance Program (DELAP). Some high school driver education classes are authorized to provide the exam with this program. Upon passing the test, the result will be entered into Florida driving records by the same school.
After successfully completing your DMV test in Florida, it's important to ensure you have the necessary documentation. Here's a checklist of the required documents:

  • Proof of identification (e.g., birth certificate or US Passport)
  • Proof of Social Security Number
  • Proof of residential address (e.g., home utility bill, home telephone bill, mortgage, etc.)
  • Online test proctoring form (for those who completed the test online)
  • Parental consent form application (if you are under 18 and unmarried)

If you complete the test through a registered third-party administrator, you don’t need to bring any extra document because the test results will be automatically notified.
The DMV written test in Florida is offered in various languages, including Arabic, Chinese, English, Haitian Creole, Russian, and Spanish. Although language options are provided, it is advisable to have a basic understanding of English since road signs are always in English.

You should read the Florida Driver' License Handbook to familiarize yourself with the driving laws, road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. Evaluate your knowledge with our free practice tests, or sign up for DMV Premium to unlock exclusive PDF Cheat Sheets!
The DMV written test includes 50 multiple-choice questions. The questions cover various topics to ensure that applicants have a solid understanding of the rules of the road. Carefully study the manual to enhance your chances of passing the exam.

On the Florida DMV written test, you are allowed to miss up to 10 questions out of the total 50 in order to pass. This means you need a score of at least 80%. Take your time during the exam to make sure you understand the questions well.

For new drivers in Florida, the following restrictions apply:
  • With a learner's license, you must be accompanied by a licensed driver who is at least 21. For the first three months you are restricted to daylight hours, then driving is allowed until 10 pm.
  • At 16 with a driver license, you can drive alone except from 11 pm to 6 am, unless for work reasons or if accompanied by a licensed driver aged 21 or older.
  • At 17 with a driver license, you can drive alone except from 1 am to 5 am, unless for work reasons or if accompanied by a licensed driver aged 21 or older.
  • For those under 21, there is zero alcohol tolerance. If stopped with a Blood Alcohol Level (BAL) of .02 or higher, your license will be suspended for six months.
If you do not pass your DMV written test in Florida, you will need to pay the fee again for another attempt. Keep in mind that a service fee is applicable to all driver license transactions at a tax collector office. Focus on the sections of the manual you have overlooked to have a deep understanding of the driving laws.

FL CDL Practice Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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