DOT: Exam-CDL Hazmat Endorsement
(Questions and Answers - 2026) With
Actual Answers.
If your vehicle is leaking a hazardous material, what action should you avoid taking a trying to
stop the leak using available tools? - Answer Any more than safety requires
Which item is loading into closed cargo spaces allowed only if packaged in fire water resistant
materials and covered with a fire water resistant tarp? - Answer Flammable liquids
When refueling a vehicle displaying hazardous materials placards where should a person be
positioned? - Answer At the nozzle controlling the fuel flow
On the Hazardous Materials Table what column shows the hazard warning labels shippers must
put on packages of hazardous materials? - Answer Column 6
What kind of pressure is applied when utilizing parking or emergency brakes? - Answer
Spring pressure
If the term "prohibited" is noted or typed in the hazard class column of any entry within the
Hazardous Materials Table what is the appropriate course of action? - Answer The product
must never be transported
When transporting 2000 lbs of phosphoric acid how far should you avoid parking from the
traveled portion of the highway except during normal operations for a brief period? - Answer
300 ft
What information is conveyed by the transport index of a radioactive material? - Answer The
degree of control needed during transportation
True or False: It's accurate to say that the driver must immediately clean up any leaking
hazardous material they come across? - Answer False
What information is provided for each item description on a shipping paper? - Answer The
material's hazard class
True or False: It's accurate to say that you should not stack nitric acid in heights exceeding 2 feet
during loading? - Answer True
, What is the minimum distance you are allowed to park a vehicle carrying hazardous materials
from an open fire? - Answer 300 ft
While inspecting a vehicle carrying hazardous cargo where should the shipping papers be placed
to ensure visibility? - Answer On the dashboard visible through the windshield
What must be included in the written instructions for a driver to transfer Class A and B
explosives? - Answer The emergency response procedures and contact information
What is the classification for battery acid under the appropriate hazardous material class or
division? - Answer Class 8 Corrosive Materials
Which of these is the primary entry to be recorded first on the shipping documents? - Answer
The proper shipping name
Who determines a product's hazard class and packing group? - Answer Shipper
Why is it untrue that a total of two placards must appear on each side of the vehicle? - Answer
Most often, four placards are required for a hazardous material shipment—a placard must
appear on each side of the vehicle and must also appear on the front and back of the vehicle.
The shipper is required to supply the driver with the placards with the required identification
numbers
What is the classification for gasoline under the appropriate hazardous material class or
division? - Answer Class 3 Flammable Liquids
When your vehicle is loaded with Class A explosive materials where is parking permitted for the
vehicle a any designated parking spot? - Answer Parking is strictly regulated for vehicles
carrying Class A explosives
When the driver is not behind the wheel where should shipping and emergency response
papers be kept? - Answer Driver's door pouch or on the driver's seat
What are the dimensions of a hazardous materials placard? - Answer 10.75 in x 10.75 in
True or False: it is correct to say that a written route plan is required when transporting Division
1.1 explosives? - Answer True
Identify the correct hazardous material class or division for white phosphorus - Answer Class
4 Flammable Solids
(Questions and Answers - 2026) With
Actual Answers.
If your vehicle is leaking a hazardous material, what action should you avoid taking a trying to
stop the leak using available tools? - Answer Any more than safety requires
Which item is loading into closed cargo spaces allowed only if packaged in fire water resistant
materials and covered with a fire water resistant tarp? - Answer Flammable liquids
When refueling a vehicle displaying hazardous materials placards where should a person be
positioned? - Answer At the nozzle controlling the fuel flow
On the Hazardous Materials Table what column shows the hazard warning labels shippers must
put on packages of hazardous materials? - Answer Column 6
What kind of pressure is applied when utilizing parking or emergency brakes? - Answer
Spring pressure
If the term "prohibited" is noted or typed in the hazard class column of any entry within the
Hazardous Materials Table what is the appropriate course of action? - Answer The product
must never be transported
When transporting 2000 lbs of phosphoric acid how far should you avoid parking from the
traveled portion of the highway except during normal operations for a brief period? - Answer
300 ft
What information is conveyed by the transport index of a radioactive material? - Answer The
degree of control needed during transportation
True or False: It's accurate to say that the driver must immediately clean up any leaking
hazardous material they come across? - Answer False
What information is provided for each item description on a shipping paper? - Answer The
material's hazard class
True or False: It's accurate to say that you should not stack nitric acid in heights exceeding 2 feet
during loading? - Answer True
, What is the minimum distance you are allowed to park a vehicle carrying hazardous materials
from an open fire? - Answer 300 ft
While inspecting a vehicle carrying hazardous cargo where should the shipping papers be placed
to ensure visibility? - Answer On the dashboard visible through the windshield
What must be included in the written instructions for a driver to transfer Class A and B
explosives? - Answer The emergency response procedures and contact information
What is the classification for battery acid under the appropriate hazardous material class or
division? - Answer Class 8 Corrosive Materials
Which of these is the primary entry to be recorded first on the shipping documents? - Answer
The proper shipping name
Who determines a product's hazard class and packing group? - Answer Shipper
Why is it untrue that a total of two placards must appear on each side of the vehicle? - Answer
Most often, four placards are required for a hazardous material shipment—a placard must
appear on each side of the vehicle and must also appear on the front and back of the vehicle.
The shipper is required to supply the driver with the placards with the required identification
numbers
What is the classification for gasoline under the appropriate hazardous material class or
division? - Answer Class 3 Flammable Liquids
When your vehicle is loaded with Class A explosive materials where is parking permitted for the
vehicle a any designated parking spot? - Answer Parking is strictly regulated for vehicles
carrying Class A explosives
When the driver is not behind the wheel where should shipping and emergency response
papers be kept? - Answer Driver's door pouch or on the driver's seat
What are the dimensions of a hazardous materials placard? - Answer 10.75 in x 10.75 in
True or False: it is correct to say that a written route plan is required when transporting Division
1.1 explosives? - Answer True
Identify the correct hazardous material class or division for white phosphorus - Answer Class
4 Flammable Solids
