CVOR Dangerous Goods Transportation

Question 1

Which U.S. federal agency is primarily responsible for regulating the transportation of hazardous materials by commercial vehicle?

Accepted Answer

DOT/PHMSA

Answer

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?

Accepted Answer

A shipping paper containing required hazmat information

Answer

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?

Accepted Answer

9

Answer

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?

Accepted Answer

Class 1

Answer

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?

Accepted Answer

To display required hazard warning information about the materials being transported

Answer

Placards warn emergency responders and the public about the hazardous nature of the cargo so appropriate precautions can be taken.

CVOR - Commercial Vehicle Operator’s Registration Practice Test

CVOR - Commercial Vehicle Operator’s Registration Practice Test

CVOR Dangerous Goods Transportation