Based on 2024 NM CDL manual

Questions
24
Mistakes allowed
5
Passing score
80%
Official NM Combination Vehicles: What to Expect
20
Total number of questions

16
Number of questions required to pass

80
Percentage required to pass

New Mexico Commercial Driver's License
New Mexico Commercial Driver's License

Ready to earn your combination vehicles endorsement? Take our free New Mexico CDL Combination Vehicles Practice Test now to see if you have the knowledge necessary to pass. Earning your combination vehicles endorsement will allow you to drive any type of trailer – increasing your possible work assignments and income. Our practice test has been carefully drafted to challenge your combination vehicles knowledge and ensure you are ready to pass. You’ll find questions about driving tractor trailers, double and triple-wides and straight trucks with trailers. There are questions on braking, safe driving, loading and unloading and much more. Here are some samples of the types of questions you may find on our practice test: What should you do if one of the glad hands on a blue air line is missing a seal? What should you do first in order to supply air to a trailer?

There are 20 questions in all on the test and each one is multiple choice with four possible answers. You need to answer at least 80% of the questions correctly to pass – just like on the real test. Taking this practice test is a great way to ensure you are ready to take the endorsement test and, if you are not ready, to identify the areas you need to study more. Take the practice test now to assess your current combination vehicles knowledge level. You can take this practice test an unlimited number of times.