A tractor trailer hauling gasoline should display a placard with which color and hazard class?

A tractor trailer hauling gasoline should display a placard with which color and hazard class?

• A. Red, 3
• B. Blue, 2
• C. Yellow, 4
• D. White, 6

Answer: (A)

Gasoline is a flammable liquid, so the placard used for it belongs to the flammable liquids category. The standard marker for that category is red and includes the flame symbol, signaling a fire hazard. This red, flame-plugged placard lets responders know there’s a high risk of ignition and that precautions focused on fire safety are needed. The other color options correspond to different hazards (for example, blue or yellow or white placards indicate other classes), which is why they wouldn’t be used for gasoline.

Gasoline is a flammable liquid, so the placard used for it belongs to the flammable liquids category. The standard marker for that category is red and includes the flame symbol, signaling a fire hazard. This red, flame-plugged placard lets responders know there’s a high risk of ignition and that precautions focused on fire safety are needed. The other color options correspond to different hazards (for example, blue or yellow or white placards indicate other classes), which is why they wouldn’t be used for gasoline.