Based on 2024 MD CDL manual

Questions
20
Mistakes allowed
4
Passing score
80%
Official MD Double/Triple Trailers: What to Expect
20
Total number of questions

16
Number of questions required to pass

80
Percentage required to pass

Maryland Commercial Driver's License
Maryland Commercial Driver's License

When coupling twin trailers, should you release the dolly brakes by opening the air tank petcock? Do you know the correct response? If not, you may want to take our Free Maryland CDL Double/Triple Trailers Practice Test to find out! All of our questions come with clarifications so that you can see what the correct response is even if you get it wrong. We ask you 20 multiple-choice questions on coupling and uncoupling trailers, checking air tanks, traffic safety, and the complexities of driving multiple-trailer hauls. Our questions are presented in the same format as the real thing, so you will get the chance to get comfortable with the material. Answer 80% of the questions correctly and you will pass our test!

Prepare to pass your endorsement exam and take our Free Maryland CDL Double/Triple Trailers Practice Test! You have nothing to lose and only more knowledge to gain on the way!