When a vehicle carries flammable compressed gas, what colour from the Placarding System does it display?

The correct response relates to the standardized placarding system used to indicate hazardous materials and their associated risks. When a vehicle is transporting flammable compressed gas, it is required to display a red placard. The red color signifies fire hazards and is associated with materials that can easily ignite or catch fire. This color is important not only for the identification of the material being transported but also for ensuring that first responders and the public are aware of the potential danger involved.

The other colors in the placarding system serve different purposes: yellow often indicates radioactive materials, green typically represents non-flammable substances or specific types of health hazards, and orange may indicate different classes of materials such as explosives or other special hazards. Thus, when identifying hazardous materials, understanding their associated colors helps in quick recognition and appropriate responses during emergencies.