CDL - Commercial Driver's License Hazardous Materials (Hazmat) 1

Question 1

Where must shipping papers for hazardous materials be kept while you are driving?

Accepted Answer

Within reach or in the driver's door pouch; on the driver's seat when out of the cab

Answer

In the locked glove compartment

Answer

Stored with the cargo in the trailer

Answer

Attached to the outside of the vehicle near the placards

Question 2

How many hazard classes are there in the federal hazardous materials regulations?

Accepted Answer

9

Answer

6

Answer

12

Answer

15

Question 3

A CDL driver is required to have a hazardous materials (HazMat) endorsement when:

Accepted Answer

The vehicle is required to display hazmat placards

Answer

Transporting any cargo weighing more than 10,000 pounds

Answer

Driving a vehicle with a GVWR over 26,001 pounds

Answer

Carrying cargo across state lines only

Question 4

Which hazard class covers flammable liquids such as gasoline and acetone?

Accepted Answer

Class 3

Answer

Class 1

Answer

Class 2

Answer

Class 4

Question 5

You discover your hazardous materials cargo has caught fire inside the trailer. What should you do?

Accepted Answer

Do NOT open trailer doors; move away from the vehicle and call emergency services immediately

Answer

Open the trailer doors to assess the fire before calling for help

Answer

Use your fire extinguisher on the cargo through the trailer vents

Answer

Continue driving to the nearest fire station to minimize road exposure

Question 6

When transporting hazardous materials, you must stop at a railroad crossing that does not have a signal or gate. Where should you stop?

Accepted Answer

15 to 50 feet before the nearest rail

Answer

Immediately before the crossing signal post

Answer

At least 100 feet from the crossing, on the shoulder

Answer

On the crossing itself if traffic is clear ahead