Knowledge Test Class B #1
Class B Driving Test | Florida 2026 #1 Page 5 of 7
Train for FREE online with our Florida class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a FL CDL class B permit in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.
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29 . Alcohol begins to affect the body:
Alcohol consumption impairs muscle coordination, reaction time, depth perception, vision, judgement, and inhibition. For some people, signs of impairment may begin with the first drink of alcohol. It is safest to not operate any motor vehicle after consuming alcohol in any amount.
30 . If the safety relief valve in an air brake system is releasing air:
The safety relief valve in an air brake system releases air if necessary to prevent pressure in the system from becoming too high. If the valve starts releasing air, there is something wrong. Have a mechanic fix the problem.
31 . If a speed limit is posted, the posted speed:
A maximum posted speed limit is the fastest a vehicle may travel under ideal circumstances. A driver should decrease their driving speed as conditions require. A driver should never exceed the legal speed limit.
32 . You may:
A person cannot have more than one driver license at a time. States share information through a computer database to ensure that no person has more than one license. Violation of this law could result in fines or jail time.
33 . When inspecting your vehicle, you should check for all of the following, except:
During a pre-trip inspection, you should verify that the air pressure is neither too low nor too high in any of your tires.
34 . Before attempting to put out an engine fire:
If you experience an engine fire, you should turn off the engine as soon as safely possible. Avoid opening the vehicle's hood when extinguishing the fire.
35 . When traveling long distances, you should:
To avoid becoming fatigued on a long trip, you should take a break after every 100 miles or two hours of driving. Driving through the night, or during any other time when you would normally be asleep, raises the danger of fatigue.
2026 Florida | Frequently Asked Questions
A CDL Class A license in Florida allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the vehicle(s) being towed have a GVWR of 10,001 pounds or more. It covers vehicles like tractor-trailers, truck and trailer combinations, and livestock carriers.
With a Class A CDL license, you can operate vehicles such as tractor-trailers, truck and trailer combinations, tank vehicles, and livestock carriers. This license also covers flatbeds, and vehicles towing trailers or other vehicles over 10,000 pounds. However, additional endorsements may be required for certain types of vehicles like school buses or tank trucks.
To obtain a Class A CDL license in Florida, you must be at least 18 years old (21 for interstate driving), hold a valid Florida driver's license, and pass a vision test. You'll also need to pass a general knowledge test, a combination vehicle test, and a skills test which includes a pre-trip vehicle inspection, basic controls, and on-road driving.
To qualify for a Class A CDL license in Florida, you must be at least 18 years old for intrastate driving (within Florida only) and at least 21 years old for interstate driving (across state lines). You also need to have a valid regular driver's license and pass both written and skills tests.
While a Class A CDL license covers a broad range of large vehicles, specific endorsements are required for certain types of vehicles or cargo. For example, to drive a tanker vehicle, school bus, or hazmat vehicle, you need a Tank (N), School Bus (S), or Hazardous Material (H) endorsement respectively. Each endorsement requires an additional knowledge test.
The Class A CDL skills test encompasses three main areas. The pre-trip vehicle inspection tests your ability to assess if your vehicle is safe to drive. The basic controls test assesses your ability to control the vehicle, back up, and perform turns. The on-road driving test evaluates your driving skills in various traffic situations, including left and right turns, intersections, railway crossings, and highways.
Yes, there are certain limitations for Class A CDL license holders. For instance, they may be restricted to driving automatic transmission vehicles if they took their skills test in such a vehicle. They might also be restricted from driving tank or passenger vehicles or carrying hazardous materials unless they have the appropriate endorsements. Additionally, all CDL holders must comply with federal hours-of-service regulations.
Yes, it is possible to take the written Class A CDL test in languages other than English in Florida. The Florida Department of Highway Safety and Motor Vehicles offers the test in Spanish. However, the Federal Motor Carrier Safety Administration requires that all CDL holders can read and speak English sufficiently to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, accommodations can be made for individuals with disabilities taking the Class A CDL written test in Florida. These may include providing the test in an audio format or allowing extra time. It's necessary to request these accommodations ahead of time from the Florida Department of Highway Safety and Motor Vehicles (DHSMV).
Yes, if you fail the Class A CDL written test in Florida, you can retake it. However, you must wait until the next day to do so. If you fail the test three times, you're required to complete a driver education course before you can attempt the test again. Always make sure to review the areas where you struggled before retaking the test.