North Dakota Hazmat CDL Practice Test

This is a free 20-question practice test for the Hazmat portion of the North Dakota Commercial Driver's License knowledge exam. Questions are pulled from a pool of 68 drawn from the AAMVA CDL Manual, which is the source document the North Dakota Department of Transportation Drivers License Division uses to write its actual exam.

How it works: Click an answer. The correct choice highlights in green, and you'll see a short explanation. Aim for 85% or better before you sit for the real test in North Dakota.

Question 1 of 20

The Hazmat (H) endorsement requires:

Only a knowledge test
A knowledge test plus a TSA Threat Assessment background check
Just a fee
A skills test only

Correct. Hazmat applicants pass a knowledge test and complete the TSA Threat Assessment (HME), which involves fingerprints and an FBI background check.

Question 2 of 20

How many hazard classes are there?

Three
Five
Nine
Twelve

Correct. There are nine hazard classes: 1 explosives, 2 gases, 3 flammable liquids, 4 flammable solids, 5 oxidizers and organic peroxides, 6 toxic and infectious, 7 radioactive, 8 corrosive, 9 miscellaneous.

Question 3 of 20

A leaking package of hazmat:

Should be immediately driven to the destination
Must not be transported; secure and report
Should be wrapped in plastic
Should be ignored

Correct. Never transport a leaking package. Secure the area, report to the carrier, contact emergency services if the leak poses immediate danger.

Question 4 of 20

The H endorsement TSA background check is required to be renewed every:

Year
3 years
5 years
10 years

Correct. The TSA HME is good for five years. Renew before expiration to avoid losing the endorsement.

Question 5 of 20

A hazmat driver must complete which special training?

General awareness, function-specific, safety, security awareness, and in-depth security if a security plan is required
Forklift training
Basic first aid only
Defensive driving only

Correct. PHMSA requires general awareness, function-specific, safety, security awareness, and in-depth security training (when a security plan applies). Carriers document and re-train every three years.

Question 6 of 20

Subsidiary risk labels on a package indicate:

Additional hazards beyond the primary hazard
Just decoration
The price
The weight

Correct. Some materials have multiple hazards. The primary hazard is shown on the top-class label; subsidiary risks (e.g., toxic AND flammable) are shown on additional labels.

Question 7 of 20

Inhalation hazard placards (Division 6.1 PIH or Division 2.3) require:

Smaller placards
Subsidiary "INHALATION HAZARD" placards in addition to the primary placard
No placards
Only one placard

Correct. PIH (Poison Inhalation Hazard) materials require a primary hazard-class placard plus an "INHALATION HAZARD" subsidiary placard.

Question 8 of 20

When transporting hazmat, you must check the cargo every:

Mile
100 miles
150 miles or 3 hours, plus changes of duty status
500 miles

Correct. Federal cargo securement: check at the start, then every 150 miles or 3 hours of driving, plus every change of duty status.

Question 9 of 20

A "bulk packaging" generally refers to:

Packaging holding less than 119 gallons of liquid
Packaging holding more than 119 gallons of liquid, more than 882 lbs solid, or more than 1,000 lbs of gas
Anything in a box
Plastic only

Correct. Bulk packaging exceeds 119 gallons (liquid), 882 lbs (solid), or 1,000 lbs (gas). Bulk packaging requires markings, the four-digit ID number on each side and end, and additional driver-training requirements.

Question 10 of 20

After a hazmat incident, the driver should:

Notify the carrier and complete required reports
Drive home
Wait until the next trip to report
Throw away the shipping paper

Correct. Notify the carrier immediately. Federal incident reports may be required to PHMSA, depending on severity. Retain the shipping paper.

Question 11 of 20

When parking a placarded hazmat vehicle at a truck stop overnight, you should:

Park in a designated hazmat parking area, follow attendance rules for explosives, never block traffic
Park behind the fuel pumps
Park in the entrance
Park anywhere

Correct. Use designated hazmat parking. Explosives and certain other materials require attended parking; review the carrier's policy and federal rules.

Question 12 of 20

Hazardous materials are products that:

Are heavier than normal cargo
Pose a risk to health, safety, or property during transportation
Can only be hauled at night
Require a special trailer color

Correct. Hazardous materials (hazmat) are products that pose a risk to health, safety, or property during transportation. Hazmat regulations are codified in 49 CFR.

Question 13 of 20

When refueling a hazmat-loaded vehicle:

Leave the engine running
Turn off the engine, do not smoke, and someone must control the fueling process
Smoke if you are far enough away
It does not matter

Correct. Engine off, no smoking within 25 feet of the vehicle being fueled, and someone must be in control of the fueling at the nozzle.

Question 14 of 20

Placards must be at least how many inches on each side?

10.75 inches (273 mm)
5 inches
15 inches
20 inches

Correct. Placards are diamond-shaped, at least 250 mm (about 10.75 inches) on each side.

Question 15 of 20

Hazard Class 1 is:

Flammable liquids
Explosives
Corrosives
Radioactive materials

Correct. Class 1 covers explosives, divided into divisions 1.1 through 1.6 by mass-explosion and projection hazard.

Question 16 of 20

Where can a hazmat-placarded vehicle never be parked?

On private property
Within 5 feet of the traveled portion of a roadway, except briefly for vehicle operation
Anywhere
At a truck stop

Correct. Never park within 5 feet of the traveled portion of a road. Avoid populated areas, near open fires, and near places where people congregate.

Question 17 of 20

Hazard Class 3 is:

Flammable liquids
Explosives
Toxic substances
Radioactive

Correct. Class 3 is flammable liquids — gasoline, diesel, ethanol, alcohols, etc.

Question 18 of 20

A driver's responsibilities for hazmat include:

Refusing to accept improperly marked, labeled, or leaking shipments; placarding the vehicle; following routes; carrying the shipping paper; responding to incidents
Only signing the bill of lading
Only delivering on time
Only refueling

Correct. The driver verifies the shipment, placards if required, carries the documentation, follows routes and parking rules, and handles incidents per training.

Question 19 of 20

A vehicle hauling explosives may not be parked within:

100 feet of an open fire, school, theater, or place where people gather
10 feet of any building
One block of a fire station
Any distance

Correct. Class 1 explosives have specific parking restrictions — at least 300 feet from open fires; never near schools, theaters, or places where people gather.

Question 20 of 20

Placards must be displayed on:

One side
Two sides
Three sides
All four sides of the vehicle

Correct. Placards are displayed on all four sides of the vehicle — front, back, and both sides.

About the North Dakota Hazmat exam

Most states administer 30 Hazmat questions and require 80% to pass. The exam covers hazard classes, the shipping paper, placards and labels, loading and unloading, driving and parking rules, emergency response, and the Emergency Response Guidebook (ERG).

The North Dakota Department of Transportation Drivers License Division follows the federal CDL standards established by FMCSA. To earn the Hazmat credential, you must answer at least 80% of the questions correctly. Many candidates score lower the first time because the test pulls from a large pool — refreshing this page will give you a different mix of questions, drawn from the same authoritative source.

Want more practice? Try the full Hazmat question bank or browse all North Dakota CDL practice tests.