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Free Iowa CDL General Knowledge Test 2024 | IA

Part of mandatory Entry-Level Driver Training Course Based on 2024 IA commercial driver's license manualAvailable in EN, ES
50questions
10mistakes allowed
80%passing score

Practice exams are one of the best ways to expand your knowledge of the relevant laws, road rules, driving techniques, and more that you need as a safe CMV driver.
These 50 multiple-choice questions, complete with hints and explanations, help you prepare for your Iowa CDL written exam by using information and practice questions based directly on the Iowa Commercial Driver License Manual, as well as national and state laws. Practice until you get the score you want, and good luck!

4.27 out of 5 • 126 votes.

Perfect for

  • First-time IA CDL and CLP applicants
  • CDL holders adding endorsements
  • IA CDL renewal applicants
IA commercial driver's license

What to expect on the actual IA DOT exam

How many questions50
How many correct answers to pass40
Passing score80%

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Iowa CDL License FAQs in 2024

How can you obtain a CDL license?

To obtain a CDL license in Iowa, first get a commercial learner’s permit (CLP) by passing the required knowledge tests. Hold the CLP for at least 14 days before taking the skills test. Complete CDL training (recommended) and pass the skills test. Ensure you meet all medical and legal requirements.

What is the cost of getting a CDL?

The cost for a CDL in Iowa includes a $12 fee for the CLP and a $16 fee for the CDL license. Additional costs may apply for skills testing and CDL training programs.

How long does CDL training last?

CDL training duration in Iowa varies by program. Full-time training typically ranges from a few weeks to several months, depending on the school and the specific program.

What disqualifies you from getting a CDL?

In Iowa, disqualifications from obtaining a CDL include serious traffic violations such as DUIs, reckless driving, criminal convictions involving motor vehicles, and failing the medical examination required for CDL holders.

How long is the CDL permit test?

The Iowa CDL permit test duration varies based on the applicant's preparedness and test-taking pace. The general knowledge test, which is part of the permit test, typically consists of 50 questions.

More IA CDL General Knowledge Resources

Helpful resources

IA CDL Handbook

View the most recent (2024) official IA CDL Handbook.

Open PDF

IA CDL Practice Test App

Download our free iOS or Android app and practice for your driving test offline or on the go.

CDL Genie app

10 Things You Should Do Before Your Driving Knowledge Exam (PDF)

Many people do their best but still get to the DMV overconfident and underprepared because they fail to do some of the simple...

Open PDF
10 Things You Should Do Before Your Driving Knowledge Exam (PDF)