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FREE 2024 Massachusetts (MA) Combination Exam Simulator 1

2024 MA 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 Massachusetts 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 Massachusetts's Driver's License

Based on the 2024 MA CDL Driver's Manual

MA Combination Fact Sheet
Questions on Test:
20
Correct answers needed to pass:
16
Passing Score:
80%
Age to apply:
18
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When should you use the hand valve to park a combination vehicle?
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  1. When should you use the hand valve to park a combination vehicle?
  2. Which answer is correct for the air valves when testing the trailer service brakes only?
  3. You are coupling a semi-trailer to your tractor but have not yet backed under. The trailer is at the right height when:
  4. How should you test the tractor trailer connection for security?
  5. Which answer is correct for the air valves when testing the trailer spring / parking brakes only?
  6. Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
  7. You supply air to the trailer tanks by:
  8. There are two things that a driver can do to prevent a roll over. They are: (1) keep the cargo as close to the ground as possible; and (2):
  9. You are coupling a semi-trailer to your tractor but have not yet backed under. The trailer is at the right height when:
  10. The fifth wheel locking lever is not locked after the jaws close around the kingpin; this means:
  11. When backing your tractor under a trailer, you should expect:
  12. Before you start to uncouple, you must
  13. During uncoupling, you should disconnect the electrical cable and
  14. As part of your vehicle inspection test, if your vehicle is equipped with air brakes and has a trailer, you will inspect the air connections between the truck or tractor and the trailer. Make sure that the ________ are locked in place and free of damage or air leaks.
  15. If your vehicle gets stuck on a railroad track, you should
  16. If your test of the tractor protection valve is successful,
  17. You should not use the trailer hand brake to straighten out a jackknifing trailer, because
  18. You should not use the trailer hand valve while driving because
  19. A trailer is most likely to jackknife when it is
  20. When backing a tractor under a trailer, you should
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