Which of the following is NOT one of the four primary hazards associated with energetic materials?

• A. Blast overpressure
• B. Electrical shock
• C. Fire/heat
• D. Toxic or irritant fumes

Answer: (B)

Energetic materials pose hazards from the energy they release during an explosive event. The four main threats come from the explosion’s effects: the blast overpressure from the pressure wave, the intense heat or fire it can generate, the toxic or irritant fumes produced by the material and its combustion, and the high-velocity fragments that can project as shrapnel. Electrical shock isn’t part of that intrinsic hazard set; it’s a risk tied to electrical systems or wiring, not to the explosion’s immediate physical effects. So electrical shock is the one that does not belong among the four primary hazards.