HazMat Ultimate CDL Hazardous Materials (HazMat) Endorsement 4

Question 1

You are hauling hazmat and approach a tunnel. What should you do?

Accepted Answer

Check whether hazmat vehicles are permitted in that tunnel

Answer

Proceed through if the tunnel is ventilated

Answer

Turn off the engine and coast through

Answer

Increase speed to minimize time in the tunnel

Question 2

What is the proper procedure if your hazmat cargo begins leaking during transport?

Accepted Answer

Pull over safely, keep people away, and contact emergency services

Answer

Continue to your destination and report it upon arrival

Answer

Transfer the leaking cargo to another container immediately

Answer

Increase speed to reach the nearest repair facility

Question 3

A shipment of corrosive materials (Class 8) must be placarded when the amount loaded equals or exceeds:

Accepted Answer

500 pounds

Answer

Any amount

Answer

1,001 pounds

Answer

1 liter

Question 4

Which division of Class 1 (Explosives) poses the greatest risk of a mass explosion affecting the entire load?

Accepted Answer

Division 1.1

Answer

Division 1.3

Answer

Division 1.4

Answer

Division 1.6

Question 5

What is meant by 'segregation' of hazardous materials?

Accepted Answer

Keeping incompatible hazmat separated to prevent dangerous reactions

Answer

Keeping hazmat away from the driver's cab

Answer

Dividing hazmat shipments into equal quantities

Answer

Labeling packages before loading

Question 6

Who is responsible for certifying that a hazardous material has been properly classified, described, packaged, marked, and labeled?

Accepted Answer

The shipper

Answer

The driver

Answer

The carrier

Answer

The DOT inspector

Question 7

What action should you take if you discover a hazmat package is damaged before you accept the shipment?

Accepted Answer

Refuse to accept the damaged package

Answer

Accept it but note the damage on the bill of lading

Answer

Repackage the material yourself

Answer

Accept it only if the material is Class 3 or lower