logo-cdl_v2
Get Pro
Menu

FREE Iowa CDL Practice Tests

Take the Iowa CDL Practice Tests Today!

Getting ready for the Iowa CDL written tests has never been easier with our free Iowa CDL practice tests! Our extensive pool of practice tests covers every possible test you can encounter at the DMV. Designed to simulate the official handbook, these tests ensure you have the nearest experience to the actual tests. Practice smarter, master each topic, and just walk into the Iowa DMV fully ready to pass on your first try!

Not your state?

Iowa CDL Practice Test

Ace all Iowa CDL written tests with our two powerful systems:
Master part by part in Practice mode and experience the real test atmosphere in Test mode

General Knowledge

Practice Iowa CDL General Knowledge questions

  • More than 500 questions
  • 52 parts and 16 mini tests
Practice now

Take the full Iowa CDL General Knowledge test

  • 50 questions
  • 60 mistakes allowed to pass
Take the test now

HazMat

Practice Iowa CDL HazMat questions

  • Nearly 250 questions
  • 23 parts and 7 mini tests
Practice now

Take the full Iowa CDL HazMat test

  • 30 questions
  • 30 mistakes allowed to pass
Take the test now

Passenger Vehicles

Practice Iowa CDL Passenger Vehicles questions

  • Nearly 100 questions
  • 7 parts and 1 mini test
Practice now

Take the full Iowa CDL Passenger Vehicles test

  • 20 questions
  • 20 mistakes allowed to pass
Take the test now

Air Brakes

Practice Iowa CDL Air Brakes questions

  • Nearly 200 questions
  • 16 parts and 4 mini tests
Practice now

Take the full Iowa CDL Air Brakes test

  • 25 questions
  • 25 mistakes allowed to pass
Take the test now

Combination Vehicles

Practice Iowa CDL Combination Vehicles questions

  • Nearly 100 questions
  • 8 parts and 2 mini tests
Practice now

Take the full Iowa CDL Combination Vehicles test

  • 20 questions
  • 20 mistakes allowed to pass
Take the test now

Doubles/ Triples Trailers

Practice Iowa CDL Doubles/ Triples Trailers questions

  • More than 50 questions
  • 5 parts and 1 mini test
Practice now

Take the full Iowa CDL Doubles/ Triples Trailers test

  • 20 questions
  • 20 mistakes allowed to pass
Take the test now

Tanker Vehicles

Practice Iowa CDL Tanker Vehicles questions

  • More than 50 questions
  • 5 parts and 1 mini test
Practice now

Take the full Iowa CDL Tanker Vehicles test

  • 20 questions
  • 20 mistakes allowed to pass
Take the test now

School Bus

Practice Iowa CDL School Bus questions

  • More than 100 questions
  • 11 parts and 3 mini tests
Practice now

Take the full Iowa CDL School Bus test

  • 20 questions
  • 20 mistakes allowed to pass
Take the test now

Pre-Trip Inspection

Practice Iowa CDL Pre-Trip Inspection questions

  • More than 100 questions
  • 11 parts and 3 mini tests
Practice now

Take the full Iowa CDL Pre-Trip Inspection test

  • 20 questions
  • 20 mistakes allowed to pass
Take the test now

FAQs

01

What’s on the Iowa CDL practice test?

plus

Our Iowa CDL practice test covers all possible written tests based on the official Iowa CDL handbook, including the following categories:

  • General knowledge.
  • Air brakes.
  • Combination vehicles.
  • Hazmat.
  • Tanker vehicles.
  • Passenger vehicles.
  • Double/triple trailers.
  • School bus.
  • Pre-trip inspection.
02

How hard is the Iowa CDL test?

plus

Iowa CDL test can be challenging since it encompasses a broad area of coverage. The test will require you to have in-depth knowledge of the Iowa CDL Handbook, which is over 200 pages in length. The questions range from basic general knowledge to specialized areas, such as air brakes and hazardous materials, making preparation the key to success in taking the test.

    03

    How many questions are there in the Iowa CDL knowledge test?

    plus

    To practice for the Iowa CDL test, follow this instruction:

    • Visit CDL Prep for Iowa.
    • Select the test categories you wish to practice.
    • Choose the learn mode for practice and the test mode for the full simulated exam.
    • Review the test carefully after completing it.
    • Track your process and keep practicing.
    04

    How do I practice for the Iowa CDL test?

    plus

    To practice for the Iowa CDL test, follow this instruction:

    • Air brakes test with 25 questions if applicable for vehicles with air brake systems.
    • Combination vehicles test with 20 questions if applicable for a Class A CDL.
    • HazMat test with 30 questions if applicable for hazardous materials transportation.
    • Passenger vehicles test with 20 questions if applicable for passenger transportation.
    • Double/Triple trailers test with 20 questions if applicable for driving double/triple trailers.
    • Tanker vehicles test with 20 questions if applicable for tanker transportation.
    • School bus test with 20 questions if applicable for driving a school bus.