Which option correctly matches a hazard class with an example?

Which option correctly matches a hazard class with an example?

• A. Explosives — TNT
• B. Gases — Water
• C. Flammable liquids — Beer
• D. Radioactive materials — Mercury

Answer: (A)

Hazard classification groups materials by their primary danger during transport, and using a familiar example helps lock in the category. Explosives form Class 1 because they release energy rapidly and produce shock, heat, and a blast. TNT is the classic example of an explosive, so pairing explosives with TNT correctly demonstrates this class. The other pairings don’t fit as well: water is a liquid, not a gas, so it wouldn’t illustrate the gas hazard class. A true gas example would be something like chlorine or oxygen in gaseous form. Beer is a beverage with low flammability and isn’t used as the standard example of a flammable liquid in hazmat classifications (which would use substances like gasoline or acetone). Mercury is a metal and not radioactive, so it wouldn’t illustrate the radioactive materials class (which would involve true radioactive substances).

Hazard classification groups materials by their primary danger during transport, and using a familiar example helps lock in the category. Explosives form Class 1 because they release energy rapidly and produce shock, heat, and a blast. TNT is the classic example of an explosive, so pairing explosives with TNT correctly demonstrates this class.

The other pairings don’t fit as well: water is a liquid, not a gas, so it wouldn’t illustrate the gas hazard class. A true gas example would be something like chlorine or oxygen in gaseous form. Beer is a beverage with low flammability and isn’t used as the standard example of a flammable liquid in hazmat classifications (which would use substances like gasoline or acetone). Mercury is a metal and not radioactive, so it wouldn’t illustrate the radioactive materials class (which would involve true radioactive substances).