In the US Military Marking System, the symbol '#2 in an X' indicates which hazard?

• A. Mass detonation
• B. Mass fire hazard
• C. Fragment hazard
• D. Radiation hazard

Answer: (C)

The symbol with an X marks a fragmentation hazard. In the US Military Marking System, the X shape is used to indicate that if the munition explodes, a large number of fragments or shrapnel can be propelled outward, posing a risk to personnel around it. The numeral inside the X (such as 2) signals the relative severity or expected amount of fragmentation—the higher the number, the greater the fragmentation hazard. This helps responders plan protective actions and maintain safe standoff.

This marking is distinct from indicators of other hazards. Mass detonation would be shown by markings tied to explosive power and detonation effects, a mass fire hazard points to flammable effects, and a radiation hazard would be marked with a radiation symbol.