25 realistic Hazardous Materials practice questions for Kansas CDL applicants. Required for: Drivers transporting placarded hazardous materials. Official test: 30 questions, 24 correct to pass.
Question 1 of 25 · Placards
What does "subsidiary hazard class" mean?
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A.
A secondary hazard a material poses
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B.
A backup placard
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C.
A small package
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D.
A vehicle accessory
Correct answer: A.
Some materials have a primary and a subsidiary hazard class for additional risks.
Question 2 of 25 · Shipping Papers
What information must a HazMat driver have on the bills of lading?
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A.
Total quantity by weight or volume
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B.
Number and type of packages
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C.
Shipping name and hazard class
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D.
All of the above
Correct answer: D.
All of these must be included for HazMat shipments.
Question 3 of 25 · Emergencies
When must drivers inform the carrier and emergency responders during a HazMat emergency?
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A.
As soon as it's safe to do so
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B.
When they reach the destination
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C.
Only after the cargo is unloaded
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D.
Only if asked
Correct answer: A.
Notify carrier and authorities immediately as soon as you can safely do so.
Question 4 of 25 · Rail Crossings
When approaching railroad crossings hauling HazMat, you should:
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A.
Stop within 15-50 feet of the nearest rail
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B.
Stop only at marked crossings
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C.
Slow down only
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D.
Speed up to clear quickly
Correct answer: A.
Stop 15 to 50 feet from nearest rail. Don't shift gears while crossing.
Question 5 of 25 · HazMat Driving
When transporting HazMat over long distances, drivers should:
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A.
Stay alert, take rest breaks, and inspect the load regularly
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B.
Drive at maximum speed limit
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C.
Skip rest stops to save time
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D.
Avoid highways
Correct answer: A.
Stay alert with regular rest breaks; inspect cargo at every stop.
Question 6 of 25 · HazMat Basics
Which is the goal of HazMat regulations?
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A.
To make HazMat transport safer for everyone
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B.
To allow easy transport of HazMat
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C.
To increase shipping costs
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D.
To require more inspections
Correct answer: A.
HazMat rules contain risk to public safety, property, and the environment.
Question 7 of 25 · Emergencies
Drivers must report HazMat incidents to:
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A.
The local newspaper
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B.
Carrier and law enforcement, then the National Response Center
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C.
No one — drivers are not responsible
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D.
The shipper only
Correct answer: B.
Notify your carrier and local responders, then call the National Response Center if reportable.
Question 8 of 25 · Shipping Papers
Where must HazMat shipping papers be kept while loading or unloading?
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A.
In the cab only
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B.
On the dock with the cargo
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C.
On the seat of the cab or in a door pouch within reach
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D.
Locked in the glove box
Correct answer: C.
Papers must be readily accessible at all times during transport.
Question 9 of 25 · Placards
What does the placard table tell you?
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A.
Which placards are required for which materials and quantities
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B.
Vehicle dimensions
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C.
Highway routes
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D.
Loading dock procedures
Correct answer: A.
The placarding table sets the placard rules based on hazard class and amount.
Question 10 of 25 · Security
Drivers should report any HazMat shipment that:
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A.
Appears to be tampered with
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B.
Has missing or damaged placards
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C.
Has a strong odor or evidence of leakage
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D.
All of the above
Correct answer: D.
Always report any sign of tampering, damaged placards, or leak evidence.
Question 11 of 25 · HazMat Driving
Which is true about smoking near HazMat vehicles?
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A.
Smoking is fine while driving
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B.
Smoking is prohibited within 25 feet of certain materials
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C.
Smoking is allowed at truck stops
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D.
Smoking is allowed in residential areas
Correct answer: B.
Smoking is forbidden within 25 feet of explosives, oxidizers, and flammables.
Question 12 of 25 · HazMat Basics
What's the most important reason for these regulations?
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A.
Public safety
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B.
Protect the environment
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C.
Protect the carrier
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D.
All of the above
Correct answer: D.
Regulations protect people, property, and the environment.
Question 13 of 25 · Loading
What does the term "marking" refer to?
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A.
Marking the shipper's name on the package
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B.
Putting the proper shipping name and ID number on the package
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C.
Marking the truck's plates
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D.
Marking the route on a map
Correct answer: B.
Marking includes the proper shipping name and the four-digit ID number on the package.
Question 14 of 25 · CDL Rules
Drivers transporting HazMat must have:
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A.
Only a regular driver license
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B.
A valid CDL with HazMat endorsement and TSA security threat assessment
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C.
A passport
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D.
Physician's certification only
Correct answer: B.
A current CDL with HazMat endorsement (and TSA background check) is required.
Question 15 of 25 · Emergency Equipment
Are flares allowed when stopped near a HazMat leak?
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A.
Yes, always use flares
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B.
No, do not use flares near a HazMat leak — use reflective triangles
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C.
Only with permission
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D.
Only at night
Correct answer: B.
Open flames are dangerous near leaks. Use reflective triangles instead.
Question 16 of 25 · HazMat Basics
Which HazMat is most dangerous if released into the environment?
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A.
Class 7 radioactive
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B.
Class 4 flammable solid
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C.
All HazMat are dangerous and require precaution
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D.
Class 9 miscellaneous
Correct answer: C.
Treat every HazMat shipment as dangerous and follow all rules.
Question 17 of 25 · Emergencies
What should you do if HazMat spills on the ground?
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A.
Cover with sand or absorbent material
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B.
Drive away from the spill
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C.
Get qualified help to handle the spill
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D.
Wash it down with water
Correct answer: C.
Get trained responders. Don't cover, push, or wash the spill yourself.
Question 18 of 25 · HazMat Driving
What should a driver do before transporting any HazMat shipment?
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A.
Inspect the placards and shipping papers
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B.
Inspect the vehicle and cargo
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C.
Plan the route
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D.
All of the above
Correct answer: D.
Verify all paperwork, vehicle, cargo, and route before HazMat transport.
Question 19 of 25 · Emergencies
When a HazMat package leaks, you should:
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A.
Move it to a safe area
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B.
Secure the area and call for help
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C.
Continue the trip
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D.
Place it in the trailer's rear
Correct answer: B.
Don't move leaking packages. Secure the area and contact qualified responders.
Question 20 of 25 · HazMat Driving
Drivers must avoid which of these areas when transporting HazMat?
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A.
Tunnels and bridges where prohibited
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B.
Heavily populated areas when alternative routes exist
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C.
Open flames or heat sources
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D.
All of the above
Correct answer: D.
Avoid restricted areas, populated zones, and any ignition sources.
Question 21 of 25 · Placards
Which placard color usually means a flammable material?
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A.
Red
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B.
Yellow
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C.
Green
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D.
Blue
Correct answer: A.
Red typically indicates flammable materials.
Question 22 of 25 · Security
Which is true about HazMat security?
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A.
Drivers should keep doors locked when stopped
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B.
Drivers should never leave the vehicle unattended
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C.
Drivers must follow the carrier's security plan
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D.
All of the above
Correct answer: D.
All these practices reduce theft and tampering risk for HazMat.
Question 23 of 25 · Tank Operations
What does the term "outage" mean in HazMat tank operations?
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A.
Loss of electrical power
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B.
Empty space left in a tank to allow for liquid expansion
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C.
Out-of-service tank
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D.
A leak in the tank
Correct answer: B.
Outage is the empty space left for liquid expansion due to temperature changes.
Question 24 of 25 · HazMat Driving
When can drivers smoke around a HazMat vehicle?
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A.
While driving only
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B.
When parked at a truck stop
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C.
Never within 25 feet of certain materials
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D.
Whenever convenient
Correct answer: C.
Smoking is forbidden within 25 feet of HazMat including explosives, oxidizers, or flammables.
Question 25 of 25 · Loading
Which of the following must NEVER be transported with a HazMat shipment?
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A.
Routine cargo
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B.
Other foods
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C.
Class A or B explosives without segregation tables
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D.
Pet food
Correct answer: C.
Explosives have strict segregation rules. Always consult the segregation table.
About the Hazardous Materials Test
The Hazardous Materials (HazMat) test covers the rules for transporting materials that pose a risk to health, safety, and property. Topics include the hazardous materials table, shipping papers, marking, labeling, placarding, loading and unloading, bulk packaging, driving and parking rules, communications, emergencies, and hazardous materials regulations enforced by the U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration. A federal Transportation Security Administration (TSA) background check is also required.
The Kansas Department of Revenue — Division of Vehicles administers this knowledge test as part of its commercial driver license program. To earn the HazMat Endorsement (H) on your Kansas CDL, you need to score at least 24 out of 30 on the official version.
Topics covered on this practice test
- HazMat Driving: 5 questions
- Emergencies: 4 questions
- Placards: 3 questions
- HazMat Basics: 3 questions
- Shipping Papers: 2 questions
- Security: 2 questions
- Loading: 2 questions
- Rail Crossings: 1 question
- CDL Rules: 1 question
- Emergency Equipment: 1 question
- Tank Operations: 1 question
How to use this practice test
- Read each question carefully. CDL questions are written precisely — small wording differences matter.
- Click "Show Answers & Explanations" only after answering every question. Don't peek mid-test.
- Read the explanation for every question, even ones you got right. The reasoning is more important than the answer.
- Repeat the test until you score 100%. The questions are deterministic per state, so you can track your improvement over multiple sessions.
- Move on to the other endorsement tests for Kansas until you're ready for the official exam.
Tips specific to the Hazardous Materials test
HazMat is the longest knowledge test (30 questions) and adds a Transportation Security Administration (TSA) background check. Most candidates struggle with placard colors, the segregation table, shipping paper requirements, and emergency response procedures. Use the official Emergency Response Guidebook (ERG) alongside this practice set.