Answer :
Final answer:
The diamond-shaped DOT signs found on transport trucks are known as hazardous materials placards. They identify the risks associated with transported goods and help to notify emergency responders of potential hazards.
Explanation:
The large diamond-shaped DOT signs found on the outside of a highway transport truck are called hazardous materials placards or hazmat placards for short. These placards are utilized to identify the risks associated with transportable goods and to communicate them to the emergency responders. These placards come in different colors and each color represents a different type of hazard, like fire risk, explosive, poisonous, etc. Therefore, their use is essential for the safety of transport and handling of hazardous materials.
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