How must a vehicle carrying explosives be marked?

• A. With white and red signs
• B. With blue diamond shaped placards
• C. With yellow triangle placards
• D. With orange diamond shaped placards and clear signage

Answer: (D)

Vehicles carrying explosives must be marked with orange diamond-shaped placards and clear signage because this is a standard safety measure in the transportation of hazardous materials. The use of orange diamonds is widely recognized within the transportation community as a clear indicator that the vehicle contains explosive materials.

This marking system serves several purposes: it alerts first responders and others on the road to the potential dangers, helps ensure that the vehicle is handled with the appropriate level of caution during transport, and complies with regulatory requirements for transporting hazardous materials. Clear signage accompanying the placards is essential to convey specific information regarding the type of explosives being transported, which can help in managing any incidents that may occur.

In contrast, the other options do not meet the established safety standards for marking vehicles that transport explosives and could potentially lead to confusion or inadequate precautions being taken.