Your Progress
- 0 Incorrect (6 allowed to pass)
- 0 Correct
How to Pass The First Time
- Practice with the Free tests
- Unlock 67 Premium tests
- Review our Premium Cheat Sheets
or we return 100% of your money
- Updated for November 2024
- Based on 2024 IA commercial driver's license manual
Free Iowa CDL HazMat Practice Test 2024
Iowa is a state filled with amazing exports, from award-winning corn to beef that can beat steaks from anywhere in the world, but it relies on commercial vehicle drivers to get to reach buyers. The best way for you to enjoy a fulfilling trucking career in Iowa is to have the maximum amount of qualifications to stand out in your field, including your Hazardous Materials (HazMat) endorsement! To get one step closer to receiving that endorsement, today you will take a practice test with 30 questions that will get you comfortable with both the style of the real exam (multiple-choice) and the subject matter. This test has been written carefully by our experts and based on information directly from the Iowa Commercial Driver License Manual’s section on Hazardous Materials, so pay close attention to both the questions and the explanations, which contain information that may help you in the future. Once you receive an 80% or better on your practice test and study a sufficient amount, there is a good chance you will receive a passing score on your real exam. So study thoroughly, come back and practice as often as necessary, and soon you’ll receive that HazMat endorsement!
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual IA DOT exam
questions
correct answers to pass
passing score
List of questions (classic view)
- How often should you check the tires on a placarded trailer that has dual tires?
- What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
- Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
- If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?
- You must NEVER smoke or perform any activity involving fire within 25 feet of
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- When shippers package the material, they are trying to
- What is the purpose of a driver placarding his or her vehicle?
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- Cargo tanks are
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
- How far away are you allowed to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?
- Which of the following hazard classes uses a transport index to determine how much of it can be loaded on a single vehicle for transport?
- Which of the following materials is an acceptable floor liner for moving Division 1.1 or 1.2 materials?
- What are the two main places where the hazardous material identification number appears?
- What are the major differences between cargo tanks and portable tanks?
- Which of the following are necessary qualifications for non-bulk packaging?
- A safe haven is
- A placarded vehicle must carry a fire extinguisher with a minimum rating of
- To determine if you need to use placards, which of the following is NOT something you need to know?
- What is a technical name?
- In what location must you keep your shipping papers that describe any hazardous materials?
- Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- The Emergency Response Guidebook (ERG)
- The hazardous material identification numbers must be displayed on portable tanks, cargo tanks, and other bulk packaging. The regulations require black _______ numbers.
- At a rest stop, you discover that your hazardous materials shipment is leaking but there is no phone available. What do you do?
- You may not park a vehicle carrying explosives within ____ feet of an open fire.
- If hazardous material is spilling from your vehicle, do not move your vehicle
- A truck carrying explosives has collided with another vehicle. You should not pull them apart until
More resources
- Alabama: Test 1 / Test 2
- Alaska: Test 1 / Test 2
- Arizona: Test 1 / Test 2
- Arkansas: Test 1 / Test 2
- California: Test 1 / Test 2
- Colorado: Test 1 / Test 2
- Connecticut: Test 1 / Test 2
- Delaware: Test 1 / Test 2
- District of Columbia: Test 1 / Test 2
- Florida: Test 1 / Test 2
- Georgia: Test 1 / Test 2
- Hawaii: Test 1 / Test 2
- Idaho: Test 1 / Test 2
- Illinois: Test 1 / Test 2
- Indiana: Test 1 / Test 2
- Iowa: Test 1 / Test 2
- Kansas: Test 1 / Test 2
- Kentucky: Test 1 / Test 2
- Louisiana: Test 1 / Test 2
- Maine: Test 1 / Test 2
- Maryland: Test 1 / Test 2
- Massachusetts: Test 1 / Test 2
- Michigan: Test 1 / Test 2
- Minnesota: Test 1 / Test 2
- Mississippi: Test 1 / Test 2
- Missouri: Test 1 / Test 2
- Montana: Test 1 / Test 2
- Nebraska: Test 1 / Test 2
- Nevada: Test 1 / Test 2
- New Hampshire: Test 1 / Test 2
- New Jersey: Test 1 / Test 2
- New Mexico: Test 1 / Test 2
- New York: Test 1 / Test 2
- North Carolina: Test 1 / Test 2
- North Dakota: Test 1 / Test 2
- Ohio: Test 1 / Test 2
- Oklahoma: Test 1 / Test 2
- Oregon: Test 1 / Test 2
- Pennsylvania: Test 1 / Test 2
- Rhode Island: Test 1 / Test 2
- South Carolina: Test 1 / Test 2
- South Dakota: Test 1 / Test 2
- Tennessee: Test 1 / Test 2
- Texas: Test 1 / Test 2
- Utah: Test 1 / Test 2
- Vermont: Test 1 / Test 2
- Virginia: Test 1 / Test 2
- Washington: Test 1 / Test 2
- West Virginia: Test 1 / Test 2
- Wisconsin: Test 1 / Test 2
- Wyoming: Test 1 / Test 2
Your go-to, trusted source
Experience the Driving-Tests differenceOur commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
- Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information. - Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation. - Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy. - Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors. - User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly. - Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.
Clear your Challenge Bank?
This will clear your Challenge Bank and delete all questions.
This cannot be undone.
