CDL HAZMAT ENDORSEMENT – QUESTIONS AND ANSWERS (2025 EDITION) –
COMPLETE TEST PREPARATION GUIDE
If your vehicle is leaking a hazardous material what action should you avoid taking a trying to stop the
leak using available tools? - (answers)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? - (answers)Flammable liquids
When refueling a vehicle displaying hazardous materials placards where should a person be positioned?
- (answers)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? - (answers)Column 6
What kind of pressure is applied when utilizing parking or emergency brakes? - (answers)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? - (answers)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? - (answers)300 ft
What information is conveyed by the transport index of a radioactive material? - (answers)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? - (answers)False
, What information is provided for each item description on a shipping paper? - (answers)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? - (answers)True
What is the minimum distance you are allowed to park a vehicle carrying hazardous materials from an
open fire? - (answers)300 ft
While inspecting a vehicle carrying hazardous cargo where should the shipping papers be placed to
ensure visibility? - (answers)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? -
(answers)The emergency response procedures and contact information
What is the classification for battery acid under the appropriate hazardous material class or division? -
(answers)Class 8 Corrosive Materials
Which of these is the primary entry to be recorded first on the shipping documents? - (answers)The
proper shipping name
Who determines a product's hazard class and packing group? - (answers)Shipper
Why is it untrue that a total of two placards must appear on each side of the vehicle? - (answers)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? -
(answers)Class 3 Flammable Liquids
COMPLETE TEST PREPARATION GUIDE
If your vehicle is leaking a hazardous material what action should you avoid taking a trying to stop the
leak using available tools? - (answers)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? - (answers)Flammable liquids
When refueling a vehicle displaying hazardous materials placards where should a person be positioned?
- (answers)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? - (answers)Column 6
What kind of pressure is applied when utilizing parking or emergency brakes? - (answers)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? - (answers)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? - (answers)300 ft
What information is conveyed by the transport index of a radioactive material? - (answers)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? - (answers)False
, What information is provided for each item description on a shipping paper? - (answers)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? - (answers)True
What is the minimum distance you are allowed to park a vehicle carrying hazardous materials from an
open fire? - (answers)300 ft
While inspecting a vehicle carrying hazardous cargo where should the shipping papers be placed to
ensure visibility? - (answers)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? -
(answers)The emergency response procedures and contact information
What is the classification for battery acid under the appropriate hazardous material class or division? -
(answers)Class 8 Corrosive Materials
Which of these is the primary entry to be recorded first on the shipping documents? - (answers)The
proper shipping name
Who determines a product's hazard class and packing group? - (answers)Shipper
Why is it untrue that a total of two placards must appear on each side of the vehicle? - (answers)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? -
(answers)Class 3 Flammable Liquids
