CDL Hazardous Materials (Hazmat) 2

Question 1

What does a diamond-shaped hazmat placard primarily communicate to emergency responders?

Accepted Answer

The class of hazard the material poses

Answer

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?

Accepted Answer

When carrying any amount of certain materials or required quantities of others

Answer

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?

Accepted Answer

To describe the hazardous material and its hazards

Answer

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?

Accepted Answer

In a pouch on the driver's door or within reach on the seat

Answer

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?

Accepted Answer

A four-digit number identifying the specific hazardous material

Answer

The four-digit UN/NA ID number identifies the specific hazardous material for responders and reference guides.

CDL Practice Test