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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. Which of the following statements about stopping distance is true?
Braking distance is the distance your vehicle will travel, in ideal conditions, while you are braking.
Reaction distance is the distance you will continue to travel, in ideal conditions, before you hit the brakes.
Perception distance is the distance your vehicle travels, in ideal conditions, from the time your eyes see a hazard until your brain recognizes it.
All of the above.
2. Drivers can hold a Commercial Driver’s License from how many different States?
3. Air storage tanks:
use parts of the service brake systems to stop the vehicle in a brake system failure.
hold compressed air for the brakes.
are installed in the first tank the air compressor pumps air to.
pump air into the air storage tanks.
4. When you are driving in heavy traffic, the safest thing to do is to:
drive 10 mph below the speed of other traffic.
drive at the speed of other traffic (without going at an illegal or unsafe speed).
drive 10 mph below the speed limit.
drive at the posted speed limit.
5. Overloading can have bad effects on all of the following except:
Exhaust system
Speed control
6. Stab braking cannot be used in vehicles with:
spring brakes.
parking brakes.
air brakes.
anti-lock brakes.
7. _________ is the distance it takes to stop in ideal conditions once the brakes are applied.
Perception distance
Stopping distance
Safe following distance
Braking distance
8. Combination vehicles _________ than single CMVs.
are safer in bad weather
require more driving skill
are much easier to drive
All of the above.
9. Hydroplaning is more likely if:
tire pressure is low.
tire tread is worn.
the road is wet.
All of the above.
10. If your vehicle thumps or vibrates heavily, it may be a sign that:
one of the tires has gone flat.
the engine belt is loose.
you need to shift up.
the brakes have failed.
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FL CDL Practice Test

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