Free Iowa CDL HazMat Practice Test 2023

Welcome to the free CDL hazmat practice test for Iowa drivers. As you know, Hazardous Materials (HazMat) endorsement which allows you to carry a wider range of loads, including those objects with more dangerous items requires more training. As a CDL holder, if you want to expand your horizons, you have to get HazMat. The CDL hazmat tests will test your knowledge of various aspects of the safe transport and handling of hazardous materials. Our Iowa CDL Practice Test will give you the real experience of the exam as you will be more familiar with both the test format and the subject. The questions are based on the Iowa CDL Manual and each question has a detailed explanation so that it is very useful for you to learn more about each topic. You can retake our CDL practice test pack as often as you want. Good luck and keep driving safely!

Our CDL practice tests:
Based on 2021 IA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
IA CDL HazMat Test format:
30 questions
24 correct answers to pass
80% passing score
List of questions
The total transport index on a single vehicle cannot be more than:
If your vehicle is transporting ____ of chlorine, you should stop before crossing a railroad grade.
Why is displaying the hazmat ID number so important?
You are hauling hazardous materials and you find that one of your tires is leaking, you must:
The letters of the shipping name on a portable container with a capacity of less than 1,000 gallons must be:
In order to properly fight a hazmat fire, the driver must:
The purpose of the hazmat rules is to contain the hazardous product, and:
What is the purpose of hazmat shipping papers?
When hazardous materials are spilling from your vehicle, do not move your vehicle:
Smoking is prohibited within _____ of a vehicle carrying Class 4.2 material:
Drivers transporting chlorine in cargo tanks need to carry ____.
Who is responsible for safely transporting the shipment of hazardous materials without delay?
Smoldering packages of flammable solids should be:
When is it acceptable to use a hazard class or ID number to describe non-hazardous materials?
One requirement of loading Class 8 materials would be:
Carriers must give each driver who transports Class 1.1 or 1.2 explosives:
What placard should you use if your vehicle contains any amount of Mass Fire Hazards?
How many placards must a hazmat vehicle display, at minimum?
The first step in recognizing a hazmat load is to look at the:
You should load hazardous materials _________.