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FREE 2024 Florida (FL) Combination Exam Simulator 2

2024 FL Combination Information

The combination endorsement allows you to drive a commercial motor vehicle (CMV) with a trailer attached. The combination endorsement is required for a Class A CDL and allows only one trailer to be attached to the power unit. If you are looking to pull more than one trailer you will also need to take the doubles - triples endorsement.

The combination exam is comprised of 20 multiple choice questions covering the additional skills needed to operate a combination vehicle, which are usually heavier, longer, and require extra skill. You will need to score at least 80% (16 out of 20) to pass the combination exam.

We have 100 questions that you are likely to find on the combination endorsement exam. These questions follow the 2024 Florida CDL drivers’ manual guidelines, they will help you add the combination endorsement to your CDL, and will provide immediate feedback with explanations to help you retain the information. Get started today and put yourself in the driver’s seat.

Image of Florida's Driver's License

Based on the 2024 FL CDL Driver's Manual

FL Combination Fact Sheet
Questions on Test:
20
Correct answers needed to pass:
16
Passing Score:
80%
Age to apply:
18
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The best way to tell if your trailer has started to skid is to
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  1. The best way to tell if your trailer has started to skid is to
  2. Describe what the trailer air supply control does.
  3. If your vehicle is equipped with dummy couplers, why should you connect the glad hands to them?
  4. When coupling a tractor-semitrailer, to test the trailer air brakes, you should place the tractor protection valve control in what position?
  5. Trucks roll over more easily when fully loaded and are
  6. To stop a trailer skid, you should
  7. After you supply air to the trailer, make sure the airlines are not crossed and the trailer brakes are working. This is done by:
  8. The air leakage rate for a combination vehicle (engine off, brakes off) should be no more than ____ PSI per minute.
  9. If the service airline comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
  10. You are coupling a tractor and semi-trailer and have connected the air lines. Before backing under the trailer, you should:
  11. You have coupled with a semi-trailer. In what position should you put the front trailer supports before driving away?
  12. The driver crosses the airlines when hooking up to an old trailer. What will happen?
  13. Why should you be sure that the fifth wheel plate is greased as required?
  14. To prevent rollover, cargo should be
  15. Where should the tractor be when you inspect the landing gear after uncoupling the trailer?
  16. An antilock braking system (ABS) is useful
  17. You should use chocks when parking a trailer without spring brakes because
  18. To unlock the fifth wheel, pull the release handle to the _______ position.
  19. What is a tractor jackknife?
  20. What gear should the tractor engine be in after you uncouple the trailer and are inspecting the trailer supports?
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