CDL Hazardous Materials (Hazmat) 2 — Questions and Answers
Question 1: What does a diamond-shaped hazmat placard primarily communicate to emergency responders?
- The shipper's company name
- The class of hazard the material poses (Correct answer)
- The weight of the load in pounds
- The destination of the shipment
Correct answer: The class of hazard the material poses
Placards use color, symbol, and number to indicate the hazard class of the material being transported.
Question 2: When must a vehicle transporting hazardous materials display placards?
- Only when crossing state lines
- Only at night
- When carrying any amount of certain materials or required quantities of others (Correct answer)
- Only when the driver requests them
Correct answer: When carrying any amount of certain materials or required quantities of others
Some materials require placards in any quantity, while others require them only above threshold amounts.
Question 3: What is the purpose of the shipping paper in hazmat transport?
- To list the driver's hours
- To describe the hazardous material and its hazards (Correct answer)
- To record fuel purchases
- To track the truck's mileage
Correct answer: To describe the hazardous material and its hazards
Shipping papers identify the hazardous material, its class, ID number, and quantity for handling and emergencies.
Question 4: Where should hazmat shipping papers be kept while driving?
- Locked in the trailer
- In a pouch on the driver's door or within reach on the seat (Correct answer)
- Mailed to the receiver in advance
- In the engine compartment
Correct answer: In a pouch on the driver's door or within reach on the seat
Papers must be readily accessible to the driver and emergency responders, typically in the door pouch or on the seat.
Question 5: What does the identification (ID) number on a shipping paper and package represent?
- The driver's license number
- A four-digit number identifying the specific hazardous material (Correct answer)
- The truck's VIN
- The number of packages in the load
Correct answer: A four-digit number identifying the specific hazardous material
The four-digit UN/NA ID number identifies the specific hazardous material for responders and reference guides.
Question 6: Who is responsible for properly packaging, labeling, and marking hazardous materials before shipment?
- The driver
- The shipper (Correct answer)
- The carrier's dispatcher
- The state inspector
Correct answer: The shipper
The shipper must correctly package, mark, and label hazmat and prepare the shipping papers.
Question 7: What must the driver do before transporting a hazmat load?
- Ignore the placards if in a hurry
- Inspect the vehicle and verify shipping papers and placards match the load (Correct answer)
- Remove all labels to save space
- Combine incompatible materials to save trips
Correct answer: Inspect the vehicle and verify shipping papers and placards match the load
Drivers must inspect the vehicle and confirm the load, papers, and placards are correct and compatible.
CDL Hazardous Materials (Hazmat) 2
What does a diamond-shaped hazmat placard primarily communicate to emergency responders?