CVOR Dangerous Goods Transportation 1 — Questions and Answers
Question 1: Which U.S. federal agency is primarily responsible for regulating the transportation of hazardous materials by commercial vehicle?
- FMCSA
- EPA
- DOT/PHMSA (Correct answer)
- OSHA
Correct answer: DOT/PHMSA
The Pipeline and Hazardous Materials Safety Administration (PHMSA), under the DOT, sets the federal rules governing hazmat transportation.
Question 2: Which document must accompany a shipment of hazardous materials during transport?
- A bill of lading with no special markings
- A shipping paper containing required hazmat information (Correct answer)
- The driver's daily log
- The carrier's safety rating certificate
Correct answer: A shipping paper containing required hazmat information
Federal regulations require a shipping paper that includes the proper shipping name, hazard class, UN/NA number, and quantity for all hazmat shipments.
Question 3: How many primary hazard classes are defined in the DOT hazardous materials classification system?
- 7
- 8
- 9 (Correct answer)
- 10
Correct answer: 9
The DOT system identifies 9 hazard classes, ranging from Class 1 (Explosives) to Class 9 (Miscellaneous hazardous materials).
Question 4: Explosives such as dynamite and blasting caps fall under which DOT hazard class?
- Class 1 (Correct answer)
- Class 2
- Class 3
- Class 4
Correct answer: Class 1
Class 1 covers all explosive substances and articles, subdivided into six divisions based on mass explosion hazard and sensitivity.
Question 5: What is the primary purpose of placards on a commercial vehicle transporting dangerous goods?
- To identify the carrier company and contact information
- To display required hazard warning information about the materials being transported (Correct answer)
- To show the vehicle's gross weight rating
- To indicate the scheduled delivery route
Correct answer: To display required hazard warning information about the materials being transported
Placards warn emergency responders and the public about the hazardous nature of the cargo so appropriate precautions can be taken.
Question 6: What must a commercial driver do immediately if a dangerous goods incident (spill or leak) occurs during transport?
- Proceed to the destination and report upon arrival
- Contact only the carrier dispatcher and await instructions
- Stop safely, notify appropriate authorities, and follow emergency response procedures (Correct answer)
- Use available materials to clean up the spill and continue driving
Correct answer: Stop safely, notify appropriate authorities, and follow emergency response procedures
Drivers must stop immediately, secure the area, and report to emergency services and the National Response Center to protect public safety.
Question 7: Before a commercial driver transports dangerous goods, what is the first critical step they should take?
- Contact the consignee for verbal loading instructions
- Review the shipping papers and verify the load matches the documentation (Correct answer)
- Notify local law enforcement of the planned route
- Ensure the vehicle has a full fuel tank
Correct answer: Review the shipping papers and verify the load matches the documentation
Verifying that the cargo matches the shipping papers ensures the driver is aware of the hazards and that placarding and documentation are correct before departure.
CVOR Dangerous Goods Transportation 1
Which U.S. federal agency is primarily responsible for regulating the transportation of hazardous materials by commercial vehicle?