Which position is recommended for an ambulance when approaching a potential explosion near the building?

Which position is recommended for an ambulance when approaching a potential explosion near the building?

• A. Directly adjacent to the building entrance
• B. Upwind and uphill from the building
• C. Downwind and downhill
• D. Inside the office lobby

Answer: (B)

When approaching a potential explosion near a building, the main idea is to use wind and terrain to shield yourself from the blast, debris, and any hazardous releases. Being upwind and uphill from the building places you in the direction from which the hazard is moving away, so the blast, smoke, and vapors are less likely to reach you. The uphill position also helps keep you above ground-level debris and rising gases, which tend to move downhill and pool lower where you approach. Directly near the entrance or inside the lobby puts you in the immediate danger zone where a blast or secondary devices could impact you, and being downwind and downhill increases exposure to the shifting plume and falling debris.

When approaching a potential explosion near a building, the main idea is to use wind and terrain to shield yourself from the blast, debris, and any hazardous releases. Being upwind and uphill from the building places you in the direction from which the hazard is moving away, so the blast, smoke, and vapors are less likely to reach you. The uphill position also helps keep you above ground-level debris and rising gases, which tend to move downhill and pool lower where you approach.

Directly near the entrance or inside the lobby puts you in the immediate danger zone where a blast or secondary devices could impact you, and being downwind and downhill increases exposure to the shifting plume and falling debris.