Based on 2024 IA CDL manual

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

16
Number of questions required to pass

80
Percentage required to pass

Iowa Commercial Driver's License
Iowa Commercial Driver's License

Studying for your CDL double/triple trailers endorsement exam? Need extra help remembering how to couple and uncouple trailers, inspect cargo, safely operate rigs, and abide by state traffic laws? Our Free Iowa CDL Double/Triple Trailers Practice Test is the perfect study tool! You will get the chance to answer 20 questions that are similar to those found on the real exam. Each question gives you the correct response after you answer to ensure that you understand the material. Run through your knowledge before test day with our practice test. Answer 80% of the questions correctly and you will be ready to get your endorsement.

Remove the mystery of taking the DMV endorsement exam! Our test mirrors the real thing and gives you the chance to get a feel for answering multiple choice questions. Take our Free Iowa CDL Double/Triple Trailers Practice Test today and take the first step towards getting your endorsement!