HazMat Ultimate CDL Hazardous Materials (HazMat) Endorsement 2 — Questions and Answers
Question 1: Which federal agency primarily regulates the transportation of hazardous materials on public highways?
- EPA
- OSHA
- PHMSA (Correct answer)
- FMCSA
Correct answer: PHMSA
The Pipeline and Hazardous Materials Safety Administration (PHMSA) sets the regulations for hazmat transport, while FMCSA enforces them for commercial vehicles.
Question 2: A shipper gives you a shipping paper with a material listed as 'UN1203, Gasoline, 3, PG II.' What does 'PG II' indicate?
- The material is in Package Group 2, meaning moderate danger (Correct answer)
- The material requires two placards
- The product weighs over 2,000 pounds
- The shipment requires two drivers
Correct answer: The material is in Package Group 2, meaning moderate danger
Packing Group II (PG II) indicates a moderate degree of danger for the hazardous material.
Question 3: When transporting hazmat, how far from the nearest rail must you stop at a railroad crossing?
- 5 to 10 feet
- 15 to 50 feet (Correct answer)
- 50 to 75 feet
- 100 feet
Correct answer: 15 to 50 feet
HazMat vehicles must stop between 15 and 50 feet from the nearest rail at all railroad crossings.
Question 4: Which of the following is NOT one of the nine DOT hazard classes?
- Flammable liquids
- Toxic substances
- Radioactive materials
- Heavy machinery (Correct answer)
Correct answer: Heavy machinery
Heavy machinery is not a DOT hazard class; the nine classes cover explosives, gases, flammables, oxidizers, toxics, infectious substances, radioactives, corrosives, and miscellaneous.
Question 5: You are transporting Division 1.1 explosives. Which route must you take?
- The fastest highway route available
- A pre-approved route or the route specified by your carrier (Correct answer)
- Any interstate avoiding tunnels
- The route with the fewest traffic lights
Correct answer: A pre-approved route or the route specified by your carrier
Division 1.1, 1.2, and 1.3 explosives require a pre-approved route or the route designated by your employer.
Question 6: What does a white square-on-point (diamond) placard with the number '7' and a propeller symbol represent?
- Poison gas
- Flammable solid
- Radioactive material (Correct answer)
- Oxidizer
Correct answer: Radioactive material
Class 7 placards with the trefoil (propeller) symbol identify radioactive materials.
Question 7: If a hazardous material spills from your vehicle, what is your FIRST priority?
- Clean up the spill immediately
- Notify the nearest recycling center
- Protect people from the hazard and call for help (Correct answer)
- Move the vehicle to minimize traffic disruption
Correct answer: Protect people from the hazard and call for help
Your first priority is always to protect people by keeping them away from the hazard and alerting emergency responders.
HazMat Ultimate CDL Hazardous Materials (HazMat) Endorsement 2
Which federal agency primarily regulates the transportation of hazardous materials on public highways?